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100-467: The United States Army Corps of Engineers (USACE) had conducted similar works for the government since the beginning of the internal improvements program and it was considered the most knowledgeable organization. However, work involving California streams was outside its assigned responsibilities under the Rivers and Harbors Act . A commission was established to support the stream protection work instead of

200-569: A Corps of Engineers ... that the said Corps ... shall be stationed at West Point in the State of New York and shall constitute a military academy." Until 1866, the superintendent of the United States Military Academy was always an Engineer Officer. The General Survey Act of 1824 authorized the use of Army engineers to survey road and canal routes for the growing nation. That same year, Congress passed an "Act to Improve

300-572: A decreased stream gradient. The tons of sediment moved in this man-made and natural process resulted in raising the riverbeds along the Yuba , Sacramento , and some other rivers. This in turn increased the threat of floods in areas along the rivers, including such towns as Marysville on the Yuba. Over time this sediment would eventually move downstream to other river confluences and San Francisco Bay, disrupting navigation in those channels. Congress created

400-469: A doctrinal framework for employing capabilities; and remaining an adaptive institution in order to provide Commanders with the freedom of action they need to successfully execute Unified Land Operations. There are several other organizations within the Corps of Engineers: USACE provides support directly and indirectly to the warfighting effort. They build and help maintain much of the infrastructure that

500-546: A few years, thus leaving the ranks of the ERC. The final way one could enter the ERC was if he (or she, in the case of nurses) possessed skills needed by the Army that required no prior military training, such as nursing, railroad occupations, certain communications fields, and music. Interestingly, a substantial number of enlisted reservists in the interwar period, at least into the early 1930s, were bandsmen. Because of these restrictions,

600-463: A hand-selected unit of volunteer Army combat engineers trained in jungle warfare, knife fighting, and unarmed jujitsu ( hand-to-hand combat ) techniques. Working in camouflage, the Pioneers cleared jungle, prepared routes of advance and established bridgeheads for the infantry, as well as demolishing enemy installations. Five commanding generals (chiefs of staff after the 1903 reorganization) of

700-454: A major provider of hydroelectric energy and the country's leading provider of recreation, Its role in responding to natural disasters also grew dramatically, especially following the devastating Mississippi Flood of 1927 . In the late 1960s, the agency became a leading environmental preservation and restoration agency. In 1944, specially trained army combat engineers were assigned to blow up underwater obstacles and clear defended ports during

800-455: A new emphasis on a more holistic approach to risk management. As part of this work, USACE is the number one provider of outdoor recreation in the U.S., so there is a significant emphasis on water safety. Army involvement in works "of a civil nature," including water resources, goes back almost to the origins of the U.S. Over the years, as the nation's needs have changed, so have the Army's Civil Works missions. Major areas of emphasis include

900-408: A quarter of the Army's mobilization base expansion capability. Reserve Component (RC) Soldiers mainly perform part-time duties as opposed to the full-time (active duty) Soldiers, but rotate through mobilizations to full-time duty. When not on active duty, RC Soldiers typically perform training and service one weekend per month, currently referred to as Battle Assembly , and for two continuous weeks at

1000-574: A reduced strength. The eleventh combat division in the Army Reserve, the 104th, was converted to training, for a total of thirteen training divisions, all of which were in the Army Reserve. To reorganize the Army Reserve to the new Reorganization of Army Divisions (ROAD) structures in the early 1960s, the Army Staff decided to retain one Army Reserve division in each of the six Army areas and to eliminate four divisions. Army commanders selected

1100-821: A time during the year referred to as Annual Training (AT). Many RC Soldiers are organized into Army Reserve Troop Program Units (TPUs), while others serve in active Army units as Individual Mobilization Augmentees (IMAs), or are in non-drilling control groups of the Individual Ready Reserve (IRR). Soldiers may also serve on active duty in an Active Guard Reserve (AGR) status in support of the United States Army Reserve (USAR) mission or through Active Duty Operational Support (ADOS) and Contingency Operations-Active Duty Operational Support (CO-ADOS) missions. All United States Army soldiers sign an initial eight-year service contract upon entry into

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1200-578: A typical year, the Corps of Engineers responds to more than 30 Presidential disaster declarations, plus numerous state and local emergencies. Emergency responses usually involve cooperation with other military elements and Federal agencies in support of State and local efforts. Work comprises engineering and management support to military installations, global real estate support, civil works support (including risk and priorities), operations and maintenance of Federal navigation and flood control projects, and monitoring of dams and levees. More than 67 percent of

1300-434: A week. The battalion also deployed in support of post-Katrina operations. All of this work represents a significant investment in the nation's resources. Through its Civil Works program, USACE carries out a wide array of projects that provide coastal protection, flood protection, hydropower, navigable waters and ports, recreational opportunities, and water supply. Work includes coastal protection and restoration, including

1400-529: Is primarily located in the United States, Europe and in select Middle East office locations. Civilians do not function as active duty military and are not required to be in active war and combat zones; however, volunteer (with pay) opportunities do exist for civilians to do so. The day-to-day activities of the three mission areas are administered by a lieutenant general known as the chief of engineers /commanding general. The chief of engineers commands

1500-500: Is responsible for Corps of Engineers policy and plans the future direction of all other USACE organizations. It comprises the executive office and 17 staff principals. USACE has two civilian directors who head up Military and Civil Works programs in concert with their respective DCG for the mission area. The U.S. Army Corps of Engineers is organized geographically into eight permanent divisions, one provisional division, one provisional district, and one research command reporting directly to

1600-505: Is supervised by the civilian Assistant Secretary of the Army (Civil Works) . Three deputy commanding generals (major generals) report to the chief of engineers, who have the following titles: Deputy Commanding General, Deputy Commanding General for Civil and Emergency Operation, and Deputy Commanding General for Military and International Operations. The Corps of Engineers headquarters is located in Washington, D.C. The headquarters staff

1700-523: Is the military engineering branch of the United States Army . A direct reporting unit (DRU), it has three primary mission areas: Engineer Regiment , military construction , and civil works . USACE has 37,000 civilian and military personnel, making it one of the world's largest public engineering, design, and construction management agencies. The USACE workforce is approximately 97% civilian, 3% active duty military. The civilian workforce

1800-437: The 100th Battalion , 442nd Infantry Regiment. This meant the disestablishment of the three remaining Army Reserve fighting brigades: the 157th Infantry Brigade (Mechanized) (Separate) of Pennsylvania , the 187th Infantry Brigade (Separate) of Massachusetts , and the 205th Infantry Brigade (Separate) (Light) of Minnesota . Many of the Army Reserve training divisions were realigned as institutional training divisions. With

1900-438: The 63d , 70th , and 75th Infantry Divisions replaced the 13th, 21st, and 22d Armored Divisions. Before the dust had settled on the reforms, the Army realized that it had failed to improve unit manning or meet reasonable mobilization requirements. In the fall of 1952 Army leaders thus proposed that the personnel from the thirteen inactivated Army Reserve divisions be assigned to strengthen the remaining twelve divisions. To keep

2000-696: The Federal Emergency Management Agency (FEMA) through its security planning, force protection, research and development, disaster preparedness efforts, and quick response to emergencies and disasters. The CoE conducts its emergency response activities under two basic authorities — the Flood Control and Coastal Emergency Act ( Pub. L.   84–99 ), and the Stafford Disaster Relief and Emergency Assistance Act ( Pub. L.   93–288 ). In

2100-607: The United States Army held engineer commissions early in their careers. All transferred to other branches before being promoted to the top position. They were Alexander Macomb , George B. McClellan , Henry W. Halleck , Douglas MacArthur , and Maxwell D. Taylor . Occasional civil disasters, including the Great Mississippi Flood of 1927 , resulted in greater responsibilities for the Corps of Engineers. The aftermath of Hurricane Katrina in New Orleans and

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2200-667: The collapse of the Francis Scott Key Bridge in Baltimore provide other examples of this. The Chief of Engineers and Commanding General (Lt. general) of U.S. Army Corps of Engineers has three mission areas: combat engineers, military construction, and civil works. For each mission area the Chief of Engineers/Commanding General is supervised by a different person. For civil works the Commanding General

2300-583: The 1930s, and reforms in training efforts often shifted between one and the other of the two objectives." Service in the Organized Reserve during the interwar period was not as appealing as the Army expected, and suffered because of limited funding that restricted training opportunities. Weekly inactive training drills were unpaid, and the average Organized Reserve officer was ordered to active duty for two weeks of paid training only once every three or four years; some officers trained nearly every year, to

2400-516: The 63d, 77th, 81st, 83d, 90th, and 102d Infantry Divisions for retention and reorganized them under ROAD by the end of April 1963. Each division had two tank and six infantry battalions. With the elimination of the 79th , 94th, 96th, and 103d Infantry Divisions, the Army decided to retain their headquarters as a way to preserve spaces for general and field grade officers. It reorganized the units as operational headquarters (subsequently called command headquarters [division]) and directed them to supervise

2500-473: The 75th "Maneuver Area Command" using the resources of the 75th Infantry Division. Two years later the 75th Infantry Division was inactivated along with 87th Infantry Division. Assets of the 87th were used to organize a maneuver area command; thus one unneeded division remained in the troop basis. While the Korean War was still underway, Congress began making significant changes in the structure and role of

2600-645: The AC portion of their enlistment contract choose not to re-enlist on active duty, are automatically transferred to the RC to complete the remainder of their Statutory Obligation (eight-year service total) and may be served in a drilling Troop Program Unit (TPU), Individual Mobilization Augmentee (IMA), or Individual Ready Reserve (IRR) status. Non-commissioned officers of the rank of Staff Sergeant (E-6) and above will reenlist for an indefinite status after they have served for 12 years of service or more. The United States Army Reserve

2700-578: The Army Corps of Engineers contributed to the success of numerous missions throughout the Civil War. They were responsible for building pontoon and railroad bridges, forts and batteries, destroying enemy supply lines (including railroads), and constructing roads for the movement of troops and supplies. Both sides recognized the critical work of engineers. On 6 March 1861, once the South had seceded from

2800-482: The Army National Guard providing reserve component combat formations and related combat support units, the Army Reserve is configured to provide combat support, combat service support, peacekeeping, nation-building and civil support capability. With roughly twenty percent of the Army's organized units and 5.3 percent of the Army's budget, the Army Reserve provides about half of the Army's combat support and

2900-518: The Army Reserve. This organization provided a peacetime pool of trained Reserve officers and enlisted men for use in war. The Organized Reserve included the Officers Reserve Corps, Enlisted Reserve Corps and Reserve Officers' Training Corps (ROTC). The Organized Reserve infantry divisions raised immediately after World War I generally continued the lineage and geographic area distribution of National Army divisions that had served in

3000-636: The Army Reserve. These changes transformed the Organized Reserve into the United States Army Reserve, from 9 July 1952. This new organization was divided into a Ready Reserve, Standby Reserve, and Retired Reserve. Army Reserve units were authorized twenty-four inactive duty training days a year and up to seventeen days of active duty (called annual training). In 1959 the Army decided to realign National Guard and Army Reserve divisions under Pentomic structures. Secretary of Defense Neil H. McElroy decided on 10 Army Reserve divisions. By October 1959 ten Army Reserve infantry divisions completed their transition, but at

3100-458: The Army and the Air Force use to train, house, and deploy troops . USACE built and maintained navigation systems and ports provide the means to deploy vital equipment and other material. Corps of Engineers Research and Development (R&D) facilities help develop new methods and measures for deployment, force protection, terrain analysis, mapping, and other support. USACE directly supports

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3200-686: The Army element of the reserve components of the United States Armed Forces . On 23 April 1908 Congress created the Medical Reserve Corps, the official predecessor of the Army Reserve. After World War I , under the National Defense Act of 1920 , Congress reorganized the U.S. land forces by authorizing a Regular Army , a National Guard and an Organized Reserve (Officers Reserve Corps and Enlisted Reserve Corps) of unrestricted size, which later became

3300-537: The Army reorganization plans for the ORC. The army commanders urged that all divisions in the Organized Reserve Corps be infantry divisions because they believed that the reserve could not adequately support armored and airborne training. They thought thirteen, rather than twelve, reserve divisions should be maintained to provide a better geographic distribution of the units. The Section V Committee opposed

3400-577: The California Debris Commission to address the man-made damage and mitigate its effects. Several methods were used to solve the adverse effects. The commission dredged the sediment from the rivers and deposited it on available land nearby; in some areas they constructed larger basins to contain the debris, along the Yuba River and other rivers, the mountains of sediment were piled along its banks, effectively making levees from

3500-525: The Chief of Army Reserve (OCAR)) located at both Fort Belvoir , Virginia and The Pentagon [REDACTED] The Individual Ready Reserve (IRR) consists of individuals who are active reservists but not assigned to a particular Active Reserve Unit. Members of the IRR are encouraged to take advantage of training opportunities and are eligible for promotion provided all requirements are met. The Retired Reserve, by law, consists of soldiers who have retired from

3600-797: The Corps of Engineers in March 1863. Civil works are managed and supervised by the Assistant Secretary of the Army . Army civil works include three U.S. Congress -authorized business lines: navigation, flood and storm damage protection, and aquatic ecosystem restoration. Civil works is also tasked with administering the Clean Water Act Section 404 program, including recreation, hydropower, and water supply at USACE flood control reservoirs, and environmental infrastructure. The civil works staff oversee construction, operation, and maintenance of dams, canals and flood protection in

3700-621: The ERC maintained an average strength of only about 3,500 men and women, and never more than 6,000 at any time from 1919 to 1941; most divisions reached their full complement of officers but had less than 100 enlisted men. The extent of the U.S. Army's mobilization before its involvement in World War II—“a state neither of war nor of peace"—disrupted the Organized Reserve. Beginning in mid-1940, large numbers of Reserve officers began to be called to active duty individually and assigned to expanding Regular Army units, and to National Guard units after

3800-603: The Engineer Regiment is commanded by the Engineer Commandant, currently a position filled by an Army brigadier general. The Engineer Regiment includes the U.S. Army Engineer School (USAES) which publishes its mission as: Generate the military engineer capabilities the Army needs: training and certifying Soldiers with the right knowledge, skills, and critical thinking; growing and educating professional leaders; organizing and equipping units; establishing

3900-698: The Engineer Regiment, comprising combat engineer , rescue, construction, dive, and other specialty units, and answers directly to the Chief of Staff of the Army . Combat engineers, sometimes called sappers , form an integral part of the Army's combined arms team and are found in all Army service components: Regular Army, National Guard , and Army Reserve . Their duties are to breach obstacles; construct fighting positions, fixed/floating bridges, and obstacles and defensive positions; place and detonate explosives; conduct route clearance operations; emplace and detect landmines; and fight as provisional infantry when required. For

4000-950: The HQ. Within each division, there are several districts. Districts are defined by watershed boundaries for civil works projects and by political boundaries for military projects. U.S. Army engineer units outside of USACE Districts and not listed below fall under the Engineer Regiment of the U.S. Army Corps of Engineers, which comprises the majority of Army engineer soldiers. The Regiment includes combat engineers , whose duties are to breach obstacles; construct fighting positions, fixed/floating bridges, and obstacles and defensive positions; place and detonate explosives; conduct route clearance operations; emplace and detect landmines; and fight as provisional infantry when required. It also includes support engineers, who are more focused on construction and sustainment. Headquartered at Fort Leonard Wood, MO,

4100-661: The Navigation of the Ohio and Mississippi Rivers" and to remove sand bars on the Ohio and "planters, sawyers, or snags" (trees fixed in the riverbed) on the Mississippi, for which the Corps of Engineers was identified as the responsible agency. Separately authorized on 4 July 1838, the Corps of Topographical Engineers consisted only of officers and was used for mapping and the design and construction of federal civil works and other coastal fortifications and navigational routes. It

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4200-773: The Organized Reserve Corps (ORC), prepared in March 1946, outlined 25 divisions: three armored, five airborne, and 17 infantry. These divisions and all other Organized Reserve Corps units were to be maintained in one of three strength categories, labeled Class A, Class B, and Class C. Class A units were divided into two groups, one for combat and one for service, and units were to be at required table of organization strength; Class B units were to have their full complement of officers and enlisted cadre strength; and Class C were to have officers only. The troop basis listed nine divisions as Class A, nine as Class B, and seven as Class C. Major General Ray E. Porter therefore proposed reclassification of all Class A divisions as Class B units. Eventually

4300-463: The Organized Reserve Corps was adequate housing. While many National Guard units owned their own armories, some dating back to the nineteenth century, the Organized Reserve Corps had no facilities for storing equipment and for training. Although the War Department requested funds for needed facilities, Congress moved slowly in response. The Organized Reserve were redesignated 25 March 1948 as

4400-537: The Organized Reserve Corps. Recognizing the importance of the Organized Reserve to the World War II effort, Congress authorized retirement and drill pay for the first time in 1948. During the summer and fall of 1951 the six army commanders in the United States, staff agencies, and the Section V Committee (created after World War I for the reserve components to have a voice in their affairs), evaluated Department of

4500-412: The Organized Reserve in time of peace is to provide partially trained units which may be readily expanded to war strength and completely trained in time of emergency," historian William J. Woolley wrote that, "The question of whether reserve units were to be chiefly concerned with mobilizing and training a conscripted citizen army or were to be contingents of a nearly ready combat force was never resolved in

4600-456: The Reserve officers originally assigned to...units were available for duty with them. Consequently, the units as activated bore small resemblance to those of peacetime." The order and timetable in which Organized Reserve infantry divisions were ordered to active duty was based upon the number of World War I battle honors earned (if applicable), the location and availability of training sites, and

4700-687: The Retired Reserve, to remain such until they had served a total of 30 years combined active service and Retired Reserve service, at which point they would be fully retired and transferred back to the Regular Army for placement on the Retired List. Congress repealed those archaic provisions (for the Air Force as well). Since 1995, all Regular Army enlisted soldiers who retire remain in the Regular Component, and are placed on

4800-518: The Secretary of War." One means to join the ERC was through the ROTC or Citizens Military Training Camps (CMTC). If a man had completed at least one year in ROTC, or had completed one 4-week CMTC camp, he could also enlist in the ERC. Each year of participation in ROTC and completion of each CMTC camp earned the participant promotions in the ERC. Some enlisted reservists went on to receive commissions in

4900-458: The U.S. Army Reserve nevertheless encompasses a period of initial entry training (IET). The amount of time begins with approximately nine weeks of Basic Combat Training (BCT), but total IET time varies according to the enlistee's elected Military Occupational Specialty (MOS) which dictates Advanced Individual Training (AIT). All U.S. Army Reserve Soldiers are subject to mobilization throughout the term of their enlistment. Soldiers who, after completing

5000-527: The U.S., as well as a wide range of public works throughout the world. Some of its dams, reservoirs, and flood control projects also serve as public outdoor recreation facilities. Its hydroelectric projects provide 24% of U.S.  hydropower capacity. The Corps of Engineers is headquartered in Washington, D.C. , and has a budget of $ 7.8 billion (FY2021). The corps's mission is to "deliver vital public and military engineering services; partnering in peace and war to strengthen our nation's security, energize

5100-531: The Union, its legislature passed an act to create a Confederate Corps of Engineers. The South was initially at a disadvantage in engineering expertise; of the initial 65 cadets who resigned from West Point to accept positions with the Confederate Army, only seven were placed in the Corps of Engineers. The Confederate Congress passed legislation that authorized a company of engineers for every division in

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5200-477: The United States. The Military Programs Environmental Program manages design and execution of a full range of cleanup and protection activities: The following are major areas of environmental emphasis: United States Army Reserve The United States Army Reserve ( USAR ) is a reserve force of the United States Army . Together, the Army Reserve and the Army National Guard constitute

5300-408: The War Department agreed and made the appropriate changes. Although the dispute over Class A units lasted several months, the War Department proceeded with the reorganization of the Organized Reserve Corps divisions during the summer of 1946. That all divisions were to begin as Class C (officers only) units, progressing to the other categories as men and equipment became available, undoubtedly influenced

5400-468: The ability of the Army to furnish divisional cadres and filler replacements. The 101st Infantry Division was designated a division of the Organized Reserve after World War I and assigned to the state of Wisconsin; unlike the 82nd Airborne Division , the Reserve division was disbanded when the 101st Airborne Division was raised in the Army of the United States on 15 August 1942. A tentative troop basis for

5500-424: The active military service of the United States...for the duration of the present war and for six months after the termination thereof...each of the organizations and units and all of the personnel of the Organized Reserve not already in such service;" because most Reserve officers were already on sctive duty, this amounted to a “public relations” document. Because of the course of the mobilization of 1940–1941, "few of

5600-548: The appropriate Retired List (Regular, Permanent Disability, or Temporary Disability). National Guard soldiers who retire are discharged from their State’s National Guard, and transferred to the Army Reserve in toto and are placed on the Retired Reserve List. As such, they no longer hold the statutory dual-status defined in the National Guard Act of 1934, as members of both their State’s militia and

5700-484: The army commanders received called for twenty-five Organized Reserve Corps divisions, but the divisions activated between September 1946 and November 1947 differed somewhat from the original plans. The First United States Army declined to support an airborne division, and the 98th Infantry Division replaced the 98th Airborne Division. After the change, the Organized Reserve Corps had four airborne, three armored, and eighteen infantry divisions. The Second Army insisted upon

5800-538: The creation of a "Chief Engineer for the Army". Congress authorized a corps of engineers for the United States on 11 March 1779. The Corps as it is known today came into being on 16 March 1802, when the president was authorized to "organize and establish a Corps of Engineers ... that the said Corps ... shall be stationed at West Point in the State of New York and shall constitute a Military Academy ." A Corps of Topographical Engineers , authorized on 4 July 1838, merged with

5900-433: The debris to protect against future flooding. Among the members of the commission were Douglas MacArthur in the early 1900s and Ulysses S. Grant III in the early 1920s. The Water Resources Development Act of 1986 eliminated the commission, with its work now the responsibility of the Corps' South Pacific Division. United States Army Corps of Engineers The United States Army Corps of Engineers ( USACE )

6000-444: The decision. Also, the War Department wanted to take advantage of the pool of trained reserve officers and enlisted men from World War II. By that time Army Ground Forces had been reorganized as an army group headquarters that commanded six geographic armies. The armies replaced the nine corps areas of the prewar era, and the army commanders were tasked to organize and train both Regular Army and Organized Reserve Corps units. The plan

6100-579: The designation, and the adjutant general replaced it by constituting the 108th Airborne Division , which fell within that component's list of infantry and airborne divisional numbers. Thus the final tally of divisions formed after World War II appears to have been the 19th, 21st, and 22d Armored Divisions; the 80th , 84th, 100th and 108th Airborne Divisions ; and the 76th, 77th, 79th, 81st, 83rd, 85th , 87th, 89th , 90th , 91st, 94th , 95th, 96th, 97th, 98th, 102nd , 103rd, and 104th Infantry Divisions . A major problem in forming divisions and other units in

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6200-588: The detriment of others who had to wait as long as seven years between training opportunities. Turnover in the Officers' Reserve Corps was high, as many men in mandatory ROTC had little interest in military affairs, and allowed their five-year commissions to expire without applying for reappointment. By the beginning of the 1930s, ROTC graduates became the single largest cohort of officers in the Officers' Reserve Corps. The original Regular Army Reserve, established in 1916 but abolished in 1920, had chiefly been manned by

6300-597: The economy and reduce risks from disasters." Its most visible civil works missions include: The history of United States Army Corps of Engineers can be traced back to the American Revolution . On 16 June 1775, the Continental Congress organized the Corps of Engineers, whose initial staff included a chief engineer and two assistants. Colonel Richard Gridley became General George Washington 's first chief engineer. One of his first tasks

6400-473: The end of 1942, 140,000 officers holding Reserve commissions through various paths were on active duty, but by that date, 12,100 who had been previously commissioned "had not received such orders," mainly for reasons like being over-age in grade, found medically disqualified for active service, deferred due to academics or civilian employment, or lack of vacancies. On 6 February 1942, President Franklin D. Roosevelt signed Executive Order 9049, which ordered "into

6500-449: The event of mobilization. This communication, in some cases, extended to coordinated annual training opportunities. Despite the commonly held belief that CAPSTONE traces were set in stone, the process of selecting units to mobilize and deploy in 1990 and 1991 in support of Operation Desert Shield and Desert Storm frequently ignored CAPSTONE. In the post- Cold War draw-down, all of the Army Reserve's combat units were disbanded, except

6600-463: The federal reserve component. However, some States have chosen to enact laws that provide for placement of retired or former members of the National Guard, or even Regular components, onto State Militia Retired Lists; such provisions do not affect federal retirement eligibility or benefits, and are solely a matter between that State and the individual. The Army of the United States (AUS) is

6700-656: The field; by 1865, the CSA had more engineer officers serving in the field of action than the Union Army. One of the main projects for the Army Corps of Engineers was constructing railroads and bridges. Union forces took advantage of such Confederate infrastructure because railroads and bridges provided access to resources and industry. The Confederate engineers, using slave labor, built fortifications that were used both offensively and defensively, along with trenches that made them harder to penetrate. This method of building trenches

6800-1120: The following: The U.S. Army Corps of Engineers environmental mission has two major focus areas: restoration and stewardship . The Corps supports and manages numerous environmental programs, that run the gamut from cleaning up areas on former military installations contaminated by hazardous waste or munitions to helping establish/reestablish wetlands that helps endangered species survive. Some of these programs include Ecosystem Restoration, Formerly Used Defense Sites, Environmental Stewardship, EPA Superfund , Abandoned Mine Lands, Formerly Utilized Sites Remedial Action Program , Base Realignment and Closure, 2005 , and Regulatory. This mission includes education as well as regulation and cleanup. The U.S. Army Corps of Engineers has an active environmental program under both its Military and Civil Programs. The Civil Works environmental mission that ensures all USACE projects, facilities and associated lands meet environmental standards. The program has four functions: compliance, restoration, prevention, and conservation. The Corps also regulates all work in wetlands and waters of

6900-586: The goods consumed by Americans and more than half of the nation's oil imports are processed through deepwater ports maintained by the Corps of Engineers, which maintains more than 12,000 miles (19,000 km) of commercially navigable channels across the U.S. In both its Civil Works mission and Military Construction program, the Corps of Engineers is responsible for billions of dollars of the nation's infrastructure. For example, USACE maintains direct control of 609 dams, maintains or operates 257 navigation locks, and operates 75 hydroelectric facilities generating 24% of

7000-638: The invasion of Normandy. During World War II, the Army Corps of Engineers in the European Theater of Operations was responsible for building numerous bridges, including the first and longest floating tactical bridge across the Rhine at Remagen , and building or maintaining roads vital to the Allied advance across Europe into the heart of Germany. In the Pacific theater, the "Pioneer troops" were formed,

7100-646: The mid-19th century, Corps of Engineers' officers ran Lighthouse Districts in tandem with U.S. Naval officers. The Army Corps of Engineers played a significant role in the American Civil War . Many of the men who would serve in the top leadership in this organization were West Point graduates. Several rose to military fame and power during the Civil War. Some examples include Union generals George McClellan , Henry Halleck , and George Meade ; and Confederate generals Robert E. Lee , Joseph Johnston , and P.G.T. Beauregard . The versatility of officers in

7200-620: The military construction mission on 1 December 1941, after the Quartermaster Department struggled with the expanding mission, the Corps built facilities at home and abroad to support the U.S. Army and Air Force. During World War II the USACE program expanded to more than 27,000 military and industrial projects in a $ 15.3 billion mobilization effort. Included were aircraft, tank assembly, and ammunition plants; camps for 5.3 million soldiers; depots, ports, and hospitals; and

7300-651: The military construction mission, the chief of engineers is directed and supervised by the Assistant Secretary of the Army for installations, environment, and energy, whom the President appoints and the Senate confirms. Military construction relates to construction on military bases and worldwide installations. On 16 June 1775, the Continental Congress , gathered in Philadelphia , granted authority for

7400-480: The military in the battle zone, making expertise available to commanders to help solve or avoid engineering (and other) problems. Forward Engineer Support Teams, FEST-A's or FEST-M's, may accompany combat engineers to provide immediate support, or to reach electronically into the rest of USACE for the necessary expertise. A FEST-A team is an eight-person detachment; a FEST-M is approximately 36. These teams are designed to provide immediate technical-engineering support to

7500-513: The military. Occasionally, the contract specifies that some of the service will be in the Regular Army (also called Active Component (AC)) for two, three, or four-year periods; with the remaining obligation served in the RC. Though typically, soldiers sign contracts specifying that all eight years be served in the RC, with the first six years in drilling status and the last two years in a non-drilling IRR status. Soldiers entering directly into

7600-537: The mobilization of that component was authorized in August. On 30 June 1940, 2,710 Reserve officers were on active duty, but by 15 May 1941, the number was over 46,000, and by 30 June, 57,309. The need for young, qualified company-grade officers (lieutenants and captains) was acute, and by mid-1941, 75 to 90 percent of the officers in Regular Army units and 10 percent in National Guard units were Reserve officers. By December 1941, 80,000 Reserve officers were on active duty. By

7700-440: The nation's hydropower and three percent of its total electricity. USACE inspects over 2,000 Federal and non-Federal levees every two years. Four billion gallons of water per day are drawn from the Corps of Engineers' 136 multi-use flood control projects comprising 9,800,000 acre-feet (12.1 km ) of water storage, making it one of the United States' largest water supply agencies. The 249th Engineer Battalion (Prime Power) ,

7800-656: The normal Congressional House Committee on Rivers and Harbors . The commission consisted of three officers of the Corps of Engineers, appointed by the President, by and with the advice and consent of the Senate. As with the other works, they operated under the supervision of the Chief of Engineers and under the direction of the Secretary of War , who was later replaced by the Secretary of the Army . Hydraulic mining causes large-scale erosion where employed to move unconsolidated sediments for mineral processing; it also causes similar large-scale sedimentation in downstream areas with

7900-557: The number 80 for its airborne unit because the division was to be raised in the prewar 80th Division's area, not that of the 99th. Finally, the 103rd Infantry Division , organized in 1921 in New Mexico, Colorado, and Arizona, was moved to Iowa, Minnesota, South Dakota, and North Dakota in the Fifth United States Army area. The Seventh Army (later replaced by Third Army), allotted the 15th Airborne Division, refused

8000-415: The only active duty unit in USACE, generates and distributes prime electrical power in support of warfighting, disaster relief, stability and support operations as well as provides advice and technical assistance in all aspects of electrical power and distribution systems. The battalion deployed in support of recovery operations after 9/11 and was instrumental in getting Wall Street back up and running within

8100-459: The peacetime USAR chain of command was overlaid with a wartime trace. In an expansion of the roundout and affiliation programs begun ten years earlier, CAPSTONE purported to align every Army Reserve unit with the active and reserve component units with which they were anticipated to deploy. Units maintained lines of communication with the units – often hundreds or thousands of miles away in peacetime – who would presumably serve above or below them in

8200-412: The previously used "Active Affiliate" program for these units. Nearly all "Regular Army Inactive" (RAI) infantry regiments and many other units were "affiliated" with Reserve Officers Training Corps (ROTC) units in their vicinity. The professor of military science and tactics at the school or the senior Regular Army officer of the unit's branch assigned to the ROTC program served as the unit commander, and

8300-650: The rapid construction of such landmark projects such as the Manhattan Project at Los Alamos, Hanford and Oak Ridge among other places, and the Pentagon , the Department of Defense headquarters across the Potomac from Washington, DC. In civilian projects, the Corps of Engineers became the lead federal navigation and flood control agency. Congress significantly expanded its civil works activities, becoming

8400-623: The reduction of the Organized Reserve Corps from twenty-five to thirteen divisions because it feared unfavorable publicity, particularly with the nation at war. On 20 December the Vice Chief of Staff of the United States Army , General John E. Hull , directed the reorganization and redesignation of airborne and armored divisions as infantry as soon as practicable. In March 1952 the 80th, 84th, 100th, and 108th Airborne Divisions were reorganized and redesignated as infantry divisions, and

8500-498: The reenlistment of former Regular Army soldiers or National Guardsmen, but the small annual stipend as an incentive for joining was not included in the Enlisted Reserve Corps (ERC). Another problem with the Enlisted Reserve Corps was the few avenues through which someone could join. Enlistment in the ERC was restricted to those men "who have had such military or technical training as may be prescribed by regulations of

8600-691: The reserve component of the Army, regardless whether the reserve soldier has qualified for: (1) an active duty “Regular” retirement (20+ years cumulative active duty) with retired generally beginning immediately, (2) for a reserve “non-Regular” retirement (20+ cumulative federally creditable qualifying years) with retired pay generally starting at age 60, or (3) for a disability retirement as a result of an unfitting, line of duty injury or illness with retired pay generally beginning immediately upon retirement. Until 1995, Army Regulations directed that enlisted Regular Army soldiers with 20 to 30 years of active service upon retirement were to be transferred upon retirement to

8700-607: The training of combat and support units located in the former divisional areas and to provide for their administrative support. Some former divisional units assigned to the four divisions were used to organize four brigades, which added flexibility to the force as well as provided four general officer reserve billets. In January and February 1963 the 157th , 187th , 191st , and 205th Infantry Brigades were organized with headquarters in Pennsylvania, Massachusetts, Montana, and Minnesota, respectively. The designation of each brigade

8800-445: The unit was populated with graduates of the program. By 1 October 1933, command of all RAI units had been turned over to Reserve officers. A number of the affiliations became defunct throughout the 1930s, but RAI units were among the most active in the Reserve. The ultimate use of Organized Reserve units and personnel remained unclear in the interwar period. While Army regulations stated that "The ultimate objective in training units of

8900-438: The units inactivated were the last six combat divisions in the Army Reserve, the 63d, 77th, 81st, 83d, 90th, and 102d Infantry Divisions, and the 79th, 94th, and 96th Command Headquarters (Division). The 103d Command Headquarters (Division) was converted to a support brigade headquarters. A number of U.S. Army Reserve corps headquarters were disestablished on 31 March 1968. They were reorganized as Army Reserve Commands. In 1980,

9000-507: The unneeded fifteen Army Reserve divisions active, they were to be reorganized as training divisions to staff training centers upon mobilization or man maneuver area commands for training troops. The continental army commanders implemented the new Army Reserve troop basis in 1955 piecemeal. They reorganized, without approved tables of organization, the 70th, 76th, 78th, 80th, 84th, 85th, 89th, 91st, 95th, 98th, 100th, and 108th Infantry Divisions as cadre for replacement training centers and organized

9100-477: The war. They were maintained on paper with a maximum of all of their officers and one-third of their enlisted men. Units in other arms of the Army besides infantry were also maintained, such as field artillery , coast artillery , cavalry , engineers , medical , signal , quartermaster , and ordnance . In March 1926, the War Department authorized the manning of Regular Army units being maintained in an "inactive" status with Organized Reserve officers, eliminating

9200-574: The warfighter or in a disaster area. Corps of Engineers' professionals use the knowledge and skills honed on both military and civil projects to support the U.S. and local communities in the areas of real estate, contracting, mapping, construction, logistics, engineering, and management experience. Prior to their respective troop withdrawals in 2021, this included support for rebuilding Iraq , establishing infrastructure in Afghanistan , and supporting international and inter-agency services. In addition,

9300-474: The work of almost 26,000 civilians on civil-works programs throughout USACE provides a training ground for similar capabilities worldwide. USACE civilians volunteer for assignments worldwide. For example, hydropower experts have helped repair, renovate, and run hydropower dams in Iraq in an effort to help get Iraqis to become self-sustaining. USACE supports the United States' Department of Homeland Security and

9400-645: Was appointed colonel and commander of all engineers in the Continental Army and, on 17 November 1777, he was promoted to brigadier general. When the Continental Congress created a separate Corps of Engineers in May 1779, Duportail was appointed as its commander. In late 1781 he directed the construction of the allied U.S.-French siege works at the Battle of Yorktown . On 26 February 1783, the Corps

9500-541: Was composed of 188,703 soldiers as of late 2020. A significant portion of many unit types and specializations exist in the Army Reserve. Some unique enabling units only exist in the Army Reserve. Only in the Army Reserve: [REDACTED] Army Reserve Headquarters - Fort Liberty (formerly United States Army Reserve Command (USARC)) located at Fort Liberty , North Carolina [REDACTED] Army Reserve Staff - National Capital Region (NCR) (formerly Office of

9600-598: Was derived from the lowest numbered infantry brigade associated with the division under the square structure. As with the Regular Army brigades, the number and type of maneuver elements in each Army Reserve brigade varied. In November 1965, a long-standing controversial goal of the Defense Department, a reduction of the reserve troop basis, was achieved. Those reserve units that were judged unnecessary and others that were undermanned and underequipped were deleted and their assets used to field contingency forces. Among

9700-597: Was disbanded. It was re-established during the Presidency of George Washington . From 1794 to 1802, the engineers were combined with the artillery as the Corps of Artillerists and Engineers . The Corps of Engineers, as it is known today, was established on 16 March 1802, when President Thomas Jefferson signed the Military Peace Establishment Act , whose aim was to "organize and establish

9800-589: Was known as the zigzag pattern. The National Defense Act of 1916 authorized a reserve corps in the Army, and the Engineer Officers' Reserve Corps and the Engineer Enlisted Reserve Corps became one of the branches. Some of these personnel were called into active service for World War I . From the beginning, many politicians wanted the Corps of Engineers to contribute to both military construction and civil works. Assigned

9900-775: Was merged with the Corps of Engineers on 31 March 1863, at which point the Corps of Engineers also assumed the Lakes Survey District mission for the Great Lakes . In 1841, Congress created the Lake Survey . The survey, based in Detroit, Michigan, was charged with conducting a hydrographical survey of the Northern and Northwestern lakes and preparing and publishing nautical charts and other navigation aids. The Lake Survey published its first charts in 1852. In

10000-653: Was to build fortifications near Boston at Bunker Hill . The Continental Congress recognized the need for engineers trained in military fortifications and asked the government of King Louis XVI of France for assistance. Many of the early engineers in the Continental Army were former French officers. Louis Lebègue Duportail , a lieutenant colonel in the French Royal Corps of Engineers, was secretly sent to North America in March 1777 to serve in George Washington 's Continental Army . In July 1777 he

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