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66-522: The fort's mission was to suppress stock rustling and protect settlers from attacks by discontent Californios (pre-statehood residents), and Native American tribes, including the Paiute and Mojave , and to monitor the less aggressive Emigdiano living nearby. The Emigdiano, who were closely related to the Chumash of the coastal and interior lands to the west, had several villages near Fort Tejon. After

132-617: A spreading center between the Pacific plate and the Farallon plate (which is now mostly subducted, with remnants including the Juan de Fuca plate , Rivera plate , Cocos plate , and the Nazca plate ) was beginning to reach the subduction zone off the western coast of North America. As the relative motion between the Pacific and North American plates was different from the relative motion between

198-590: A different degree of earthquake risk. The average slip rate along the entire fault ranges from 20 to 35 mm (0.79 to 1.38 in) per year. In the north, the fault terminates offshore near Eureka, California , at the Mendocino triple junction , where three tectonic plates meet. The Cascadia subduction zone intersects the San Andreas fault at the Mendocino triple junction. It has been hypothesized that

264-560: A link between the water level in Lake Cahuilla (now the Salton Sea ) and seismic activity along the southern San Andreas Fault. The study suggests that major earthquakes along this section of the fault coincided with high water levels in the lake. The hydrological load caused by high water levels can more than double the stress on the southern San Andreas Fault, which is likely sufficient for triggering earthquakes. This may explain

330-563: A magnitude 7.8 earthquake along the southern San Andreas Fault could cause about 1,800 deaths and $ 213 billion in damage. This scenario hypothesizes the potential effects of a 7.0 magnitude earthquake on the San Andreas Fault in the San Francisco Bay Area. It aims to estimate the impacts on urban infrastructures along with the rebuilding efforts to both the landscape and economy. This study combines not only

396-537: A major earthquake along the Cascadia subduction zone could trigger a rupture along the San Andreas Fault. In the south, the fault terminates near Bombay Beach, California , in the Salton Sea . Here, the plate motion is being reorganized from right-lateral to divergent . In this region (known as the Salton Trough ), the plate boundary has been rifting and pulling apart, creating a new mid-ocean ridge that

462-715: A portion of the fault is easily examined at a roadcut for the Antelope Valley Freeway . The fault continues northwest alongside the Elizabeth Lake Road to the town of Elizabeth Lake . As it passes the towns of Gorman , Tejon Pass and Frazier Park , the fault begins to bend northward, forming the "Big Bend". This restraining bend is thought to be where the fault locks up in Southern California , with an earthquake-recurrence interval of roughly 140–160 years. Northwest of Frazier Park,

528-495: A recreated troopers' quarters. The commanding officer's quarters have several restored and furnished rooms. Officers' quarters nearby are only stabilized in a state of arrested decay , with walls buttressed by masonry and lumber and tied together with reinforcing rods. A quartermaster building has been reconstructed and houses materials used in dragoon life and Civil War reenactments. The sites of former buildings, planned for reconstruction, are marked by split rail fences along

594-499: Is a combined effort from experts in the physical sciences, social sciences, and engineering both in the public and private sectors- ranging from urban planners to economists/business professionals. Not only does this study aim to estimate the impacts of the event, but aims to estimate the years of rebuilding and funding needed to recover communities from a potential disaster such as the HayWired Scenario. The first volume of

660-543: Is a continental right-lateral strike-slip transform fault that extends roughly 1,200 kilometers (750 mi) through the U.S. state of California . It forms part of the tectonic boundary between the Pacific plate and the North American plate . Traditionally, for scientific purposes, the fault has been classified into three main segments (northern, central, and southern), each with different characteristics and

726-591: Is a major problem in rural areas of South Sudan . In the state of Jonglei , cattle raids in August 2011 left around 600 people dead. Once again in January 2012, ethnic clashes related to cattle theft killed between 2,000 and 3,000 people and displaced as many as 34,500 in the area around Pibor . Cattle rustling is common in Nigeria . The theft of sheep, goats and cows along with tractors and irrigation equipment,

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792-607: Is an extension of the Gulf of California . Sediment deposited by the Colorado River is preventing the trough from being filled in with sea water from the gulf. The fault was first identified in 1895 by Professor Andrew Lawson of UC Berkeley . In the wake of the 1906 San Francisco earthquake , Lawson was tasked with deciphering the origin of the earthquake. He began by surveying and mapping offsets (such as fences or roads that had been sliced in half) along surface ruptures. When

858-725: Is listed on the National Register of Historic Places . In 1940, at the urging of local citizens, the Tejon Ranch Company deeded 5 acres (2.0 ha) to the State of California to establish a state park. Its original historic buildings have been documented by the Historic American Buildings Survey . Several buildings have been restored, and two are partially open to visitors. The restored barracks contain display cases of uniforms and

924-588: Is often depicted in stories from Irish mythology , such as the Táin Bó Cúailnge and the Táin Bó Flidhais . Cattle raiding and selling protection against theft continued by Irish clan chiefs and rapparees , particularly against the estates of Anglo-Irish landlords, well into the 18th century in Ireland. Warfare between Scottish clans was often for very similar reasons and, during

990-654: Is one of the most difficult problems confronted by farmers in Israel . About 400 cases are reported annually in the north of the country, and in the south, farmers compare the situation to the Wild West. They suffer millions of shekels in annual losses. Most of the stolen livestock is taken to the West Bank , quickly slaughtered and then smuggled back into Israel, where it is sold by butchers to unsuspecting customers. San Andreas Fault The San Andreas Fault

1056-411: Is that Lawson named the fault after this lake. However, according to some of his reports from 1895 and 1908, he actually named it after the surrounding San Andreas Valley. Following the 1906 San Francisco earthquake, Lawson also concluded that the fault extended all the way into Southern California . In 1953, geologist Thomas Dibblee concluded that hundreds of miles of lateral movement could occur along

1122-622: Is the site of frequent Civil War reenactments presented by the Fort Tejon Historical Association. The park contains a number of natural features of interest, including centuries-old valley oaks and California condors . The Fort Tejon earthquake occurred at about 8:20 AM (Pacific time) on January 9, 1857. It ruptured the San Andreas Fault for a length of about 350 kilometers (220 mi), between Parkfield and San Bernardino . Displacement along

1188-640: The paṇis of the Rigveda , the Mahabharata cattle raids and cattle rescues; and the Homeric Hymn to Hermes , who steals the cattle of Apollo . In his childhood, the Turco-Mongol conqueror Timur and a small band of followers raided travelers for goods, especially animals such as sheep, horses, and cattle. Around 1363, it is believed that Timur tried to steal a sheep from a shepherd but

1254-420: The 1994 Northridge earthquake ) occurs about once every 6.7 years statewide. The same report also estimated there is a 7% probability that an earthquake of magnitude 8.0 or greater will occur in the next 30 years somewhere along the San Andreas Fault. A different USGS study in 2008 tried to assess the physical, social and economic consequences of a major earthquake in southern California. That study predicted that

1320-684: The Boroano and Ranquel peoples, and the Pincheira brothers , ravaged the southern frontier of Argentina in search of cattle. To prevent the cattle raiding, the Argentine government built a system of trenches called Zanja de Alsina in the 1870s. Most cattle raids ended after the military campaigns of the Conquest of the Desert in the 1870s, and the following partition of Patagonia established by

1386-493: The Boundary Treaty of 1881 between Chile and Argentina . In a letter to Chilean President Manuel Montt Mapuche chief Mañil denounced the plunder of graves in search of Mapuche silver , arson of Mapuche houses and other abuses against Mapuches that were happening in the newly created province. Mañil further accused intendant Villalón con Salbo of becoming rich by cattle theft. The return of Chilean veterans from

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1452-619: The Salton Sea , contains upturned strata associated with that section of the fault. The fault then runs along the southern base of the San Bernardino Mountains , crosses through Cajon Pass and continues northwest along the northern base of the San Gabriel Mountains . These mountains are a result of movement along the San Andreas Fault and are commonly called the Transverse Range. In Palmdale ,

1518-645: The Santa Cruz Mountains , epicenter of the 1989 Loma Prieta earthquake , then up the San Francisco Peninsula , where it was first identified by Professor Lawson in 1895, then offshore at Daly City near Mussel Rock . This is the approximate location of the epicenter of the 1906 San Francisco earthquake . The fault returns onshore at Bolinas Lagoon just north of Stinson Beach in Marin County . It returns underwater through

1584-611: The Stockton - Los Angeles Road . From 1858, it was a stagecoach station on the Butterfield Overland Mail , which followed the same route as far as Visalia . From 1858, Fort Tejon was the western terminus of the experimental U.S. Camel Corps , which used imported camels in an effort to carry supplies across arid regions in the Southwest . The soldiers found the camels hardy, but temperamental, and they spooked

1650-526: The U.S. Geological Survey (USGS) have made variable predictions as to the risk of future seismic events. The ability to predict major earthquakes with sufficient precision to warrant increased precautions has remained elusive. The U.S. Geological Survey's most recent forecast, known as UCERF3 (Uniform California Earthquake Rupture Forecast 3), released in November 2013, estimated that an earthquake of magnitude 6.7 M or greater (i.e. equal to or greater than

1716-654: The War of the Pacific coincided with the Chilean Army's crushing of Mapuche resistance in the Occupation of Araucanía (1861–1883). This led to opportunities for bandits and veterans-turned-bandits to immigrate to the newly opened Araucanía territory, leading to sudden rise in violence and in a region that was recovering from Chilean-Mapuche warfare. Bandits that immigrated to Araucanía allied with displaced Mapuche and made cattle theft their chief business. Stolen cattle

1782-666: The Wild West cowboy culture, cattle theft is dubbed rustling , while an individual who engages in it is a rustler . The act of cattle-raiding is quite ancient, first attested over seven thousand years ago, and is one of the oldest-known aspects of Proto-Indo-European culture , being seen in inscriptions on artifacts such as the Norse Golden Horns of Gallehus and in works such as the Old Irish Táin Bó Cúailnge ("Cattle Raid of Cooley "),

1848-548: The eastern California shear zone . This complicated evolution, especially along the southern segment, is mostly caused by either the "Big Bend" and/or a difference in the motion vector between the plates and the trend of the fault and its surrounding branches. The fault was first identified in Northern California by UC Berkeley geology professor Andrew Lawson in 1895 and named by him after the surrounding San Andreas valley. Eleven years later, Lawson discovered that

1914-570: The 17th and 18th centuries, many Scottish clan chiefs would similarly operate an extralegal Watch over the cattle herds of the Lowland gentry in return for protection money , which Highland Chiefs similarly used to feed their tenants and clansmen. Any cattle that were stolen from herds under the Chiefs' Watch were either retrieved, or he paid for them in full. Cattle-raiding by the Border reivers

1980-646: The California economy within the first 6 months post-recovery from the event through estimates of "utility outages, property damages, and supply chain disruptions resulting in an estimated $ 44 billion of gross state product (GSP) losses, or translated at 4% of the California economy"(Wein et al.). This study also projects the recovery of jobs lost in highly impacted areas, such as Alameda County, could take up to 10 years to fully recover job losses and possible economic recession. Trajectories for economic recovery are improved by reconstruction but also delayed with impacts to

2046-585: The East in July 1861 soon after the outbreak of the American Civil War . The fort was re-occupied by California volunteer troops in 1863. Those units included Companies D, E and G of the 2nd California Volunteer Cavalry from July 6 to August 17, 1863; and Company B of the 2nd California Volunteer Infantry, which remained there until Fort Tejon was abandoned for good on September 11, 1864. The fort lay along

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2112-687: The Farallon and North American plates, the spreading ridge began to be "subducted", creating a new relative motion and a new style of deformation along the plate boundaries. These geological features are what are chiefly seen along San Andreas Fault. It also includes a possible driver for the deformation of the Basin and Range , separation of the Baja California peninsula , and rotation of the Transverse Range . The main southern section of

2178-661: The HayWired Scenario study was released in 2017, with consistent continuations and contributions by engineers. This continuation was published in the second volume, Engineering Implications, in 2018. As of the 2021 Fact sheet update, there are several estimates on damages ranging from the approximate people affected at home, work, effects of lifeline infrastructures such as telecommunications, and more. This group of scientists have worked together to create estimates of how hazards such as liquefaction, landslides, and fire ignition will impact access to utilities, transportation, and general emergency services. This study goes into detail about

2244-689: The North American plate has forced the San Andreas to jog westward. This has led to the formation of the Transverse Ranges in Southern California, and to a lesser but still significant extent, the Santa Cruz Mountains (the location of the Loma Prieta earthquake in 1989). Studies of the relative motions of the Pacific and North American plates have shown that only about 75 percent of the motion can be accounted for in

2310-550: The Route" " (PDF) . New York Times. October 14, 1858. Cattle raiding Cattle raiding is the act of stealing live cattle, often several or many at once. In Australia , such stealing is often referred to as duffing , and the perpetrator as a duffer . In other areas, especially in Queensland , the practice is known as poddy-dodging with the perpetrator known as a poddy-dodger . In North America , especially in

2376-466: The San Andreas Fault near Parkfield in central California consistently produces a magnitude 6.0 earthquake approximately once every 22 years. Following recorded seismic events in 1857, 1881, 1901, 1922, 1934, and 1966, scientists predicted that another earthquake should occur in Parkfield in 1993. It eventually occurred in 2004 . Due to the frequency of predictable activity, Parkfield has become one of

2442-475: The San Andreas Fault proper has only existed for about 5 million years. The first known incarnation of the southern part of the fault was Clemens Well-Fenner- San Francisquito fault zone around 22–13 Ma. This system added the San Gabriel Fault as a primary focus of movement between 10–5 Ma. Currently, it is believed that the modern San Andreas will eventually transfer its motion toward a fault within

2508-422: The San Andreas Fault stretched southward into southern California after reviewing the effects of the 1906 San Francisco earthquake . Large-scale (hundreds of miles) lateral movement along the fault was first proposed in a 1953 paper by geologists Mason Hill and Thomas Dibblee . This idea, which was considered radical at the time, has since been vindicated by modern plate tectonics . Seismologists discovered that

2574-463: The San Andreas fault has reached a sufficient stress level for an earthquake of magnitude greater than 7.0 on the moment magnitude scale to occur. This study also found that the risk of a large earthquake may be increasing more rapidly than scientists had previously believed. Moreover, the risk is currently concentrated on the southern section of the fault, i.e. the region around Los Angeles, because strong earthquakes have occurred relatively recently on

2640-517: The San Andreas towards Walker Lane. Assuming the plate boundary does not change as hypothesized, projected motion indicates that the landmass west of the San Andreas Fault, including Los Angeles, will eventually slide past San Francisco, then continue northwestward toward the Aleutian Trench , over a period of perhaps twenty million years. The San Andreas began to form in the mid- Cenozoic about 30 Mya (million years ago). At this time,

2706-578: The abnormally long period of time since the last major earthquake in the region since the lake has dried up. The San Andreas Fault System has been the subject of a flood of studies. In particular, scientific research performed during the last 23 years has given rise to about 3,400 publications. A study published in 2006 in the journal Nature by Yuri Fialko, an associate professor at the Cecil H. and Ida M. Green Institute of Geophysics and Planetary Physics at Scripps Institution of Oceanography , found that

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2772-736: The border. Failure to brand new calves facilitated theft. Conflict over alleged rustling was a major issue in the Johnson County War of 1892 in Wyoming . The transition from open range to fenced grazing gradually reduced the practice of rustling in North America. In the 20th century, so called "suburban rustling" became more common, with rustlers anesthetizing cattle and taking them directly to auction. This often takes place at night, posing problems for law enforcement, because on very large ranches it can take several days for

2838-1194: The central ( 1857 ) and northern ( 1906 ) segments of the fault, while the southern section has not seen any similar rupture for at least 300 years. According to this study, a major earthquake on that southern section of the San Andreas fault would result in major damage to the Palm Springs – Indio metropolitan area and other cities in San Bernardino , Riverside and Imperial counties in California, and Mexicali Municipality in Baja California . It would be strongly felt (and potentially cause significant damage) throughout much of Southern California , including densely populated areas of Los Angeles County , Ventura County , Orange County , San Diego County , Ensenada Municipality and Tijuana Municipality , Baja California, San Luis Rio Colorado in Sonora and Yuma, Arizona . Older buildings would be especially prone to damage or collapse, as would buildings built on unconsolidated gravel or in coastal areas where water tables are high (and thus subject to soil liquefaction ). Of

2904-467: The construction industry. A 2008 paper, studying past earthquakes along the Pacific coastal zone, found a correlation in time between seismic events on the northern San Andreas Fault and the southern part of the Cascadia subduction zone (which stretches from Vancouver Island to Northern California). Scientists believe quakes on the Cascadia subduction zone may have triggered most of the major quakes on

2970-522: The earlier Spanish and Mexican colonial Indian Reductions , they were generally cooperative with the European-American settlers and the U.S. Army. At the urging of Edward Fitzgerald Beale , Superintendent of Indian Affairs in California, the U.S. Army established Fort Tejon in 1854. Fort Tejon was the headquarters of the First U.S. Dragoons until those Regular Army troops were transferred to

3036-540: The fault runs through the Carrizo Plain , a long, treeless plain where much of the fault is plainly visible. The Elkhorn Scarp defines the fault trace along much of its length within the plain. The southern segment, which stretches from Parkfield in Monterey County all the way to the Salton Sea , is capable of an 8.1-magnitude earthquake. At its closest, this fault passes about 35 miles (56 km) to

3102-480: The fault was as much as 9 meters (30 feet) in the Carrizo Plain but less along the Palmdale section of the fault, closest to Los Angeles. The amount of fault slip gives this earthquake a moment magnitude of 7.9, comparable to that of the 1906 San Francisco earthquake . Based on the (uncertain) distribution of foreshocks for this earthquake, it is assumed that the beginning of the fault rupture (the epicenter)

3168-494: The fault. A National Science Foundation funded project called the San Andreas Fault Observatory at Depth (SAFOD) near Parkfield, California , involved drilling through the fault from 2004 to 2007. The aim was to collect core samples and make direct geophysical and geochemical observations to better understand fault behavior at depth. The northern segment of the fault runs from Hollister , through

3234-433: The geological impacts/effects of the event, but also the societal impacts such as property damage, economic rebuilding, and aims at estimating damages if cities increased risk-reduction. It was developed for preparedness geared towards Bay Area residents and as a warning with an attempt to encourage local policy makers to create infrastructure and protections that would further risk reduction and resilience-building. This study

3300-457: The horses used by the cavalry. The great earthquake of 1857, which became known as the Fort Tejon earthquake , was centered nearly 100 miles away. The earthquake became associated with the fort by name because the area near the epicenter was sparsely populated. The most reliable report of the event was issued from the fort, nearly 93 miles (149.7 km) distant. The state historic park

3366-462: The influence of plate tectonics . The rate of slippage averages about 33 to 37 millimeters (1.3 to 1.5 in) a year across California. The southwestward motion of the North American plate towards the Pacific is creating compressional forces along the eastern side of the fault. The effect is expressed as the Coast Ranges. The northwest movement of the Pacific plate is also creating significant compressional forces which are especially pronounced where

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3432-401: The linear trough of Tomales Bay which separates the Point Reyes Peninsula from the mainland, runs just east of Bodega Head through Bodega Bay and back underwater, returning onshore at Fort Ross . (In this region around the San Francisco Bay Area several significant "sister faults" run more-or-less parallel, and each of these can create significantly destructive earthquakes.) From Fort Ross,

3498-422: The location of these offsets were plotted on a map, he noted that they made a near perfect line on top of the fault he previously discovered. He concluded that the fault must have been the origin of the earthquake. This line ran through San Andreas Lake , a sag pond . The lake was created from an extensional step over in the fault, which created a natural depression where water could settle. A common misconception

3564-406: The loss of cattle to be noticed and reported. Convictions are extremely rare to nonexistent. Cattle raiding became a major issue at the end of the 19th century in Argentina, where cattle stolen during malones were taken through Camino de los chilenos across the Andes to Chile , where they were exchanged for alcoholic beverages and firearms . Several indigenous groups and outlaws, such as

3630-407: The most important areas in the world for large earthquake research. In 2004, work began just north of Parkfield on the San Andreas Fault Observatory at Depth (SAFOD). The goal of SAFOD is to drill a hole nearly 3 kilometres (1.9 mi) into the Earth's crust and into the San Andreas Fault. An array of sensors will be installed to record earthquakes that happen near this area. A 2023 study found

3696-452: The movements of the San Andreas and its various branch faults. The rest of the motion has been found in an area east of the Sierra Nevada mountains called the Walker Lane or Eastern California Shear Zone. The reason for this is not clear. Several hypotheses have been offered and research is ongoing. One hypothesis – which gained interest following the Landers earthquake in 1992 – suggests the plate boundary may be shifting eastward away from

3762-421: The northeast of Los Angeles. Such a large earthquake on this southern segment would kill thousands of people in Los Angeles, San Bernardino, Riverside, and surrounding areas, and cause hundreds of billions of dollars in damage. The Pacific plate , to the west of the fault, is moving in a northwest direction while the North American plate to the east is moving toward the southwest, but relatively southeast under

3828-435: The northern segment continues overland, forming in part a linear valley through which the Gualala River flows. It goes back offshore at Point Arena . After that, it runs underwater along the coast until it nears Cape Mendocino , where it begins to bend to the west, terminating at the Mendocino triple junction . The central segment of the San Andreas Fault runs in a northwestern direction from Parkfield to Hollister . While

3894-403: The outlines of their foundations. A park office, containing exhibits of dragoon life and restrooms, is at the east end of the parade ground near the parking lot by Interstate 5 . The park grounds include the original barracks, where the soldiers slept, and also the grave site of Peter Lebeck , which is indicated with a historical marker. The nearby town of Lebec is named after him. Fort Tejon

3960-403: The southern section of the fault and the parts through Parkfield experience earthquakes, the rest of the central section of the fault exhibits a phenomenon called aseismic creep , where the fault slips continuously without causing earthquakes. It was formed by a transform boundary. The southern segment (also known as the Mojave segment) begins near Bombay Beach, California . Box Canyon, near

4026-526: The specific populations to be hardest impacted by a potential earthquake of a 7.0 magnitude, specifically in the San Francisco Bay Area. This includes intensified hardships for those with low-income, racially and culturally-diverse populations, and people with literacy hardships that would significantly "increase their risk of displacement and add to recovery challenges" (Wein et al.). In addition to societal and landscape impacts, this study looks at potential business interruptions. This portion estimates impacts to

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4092-412: The study, Fialko stated: All these data suggest that the fault is ready for the next big earthquake but exactly when the triggering will happen and when the earthquake will occur we cannot tell. It could be tomorrow or it could be 10 years or more from now. Nevertheless, in the 18 years since that publication there has not been a substantial quake in the Los Angeles area, and two major reports issued by

4158-436: Was a serious problem for many centuries on both sides of the Anglo-Scottish border . In the American frontier , rustling was considered a serious offense and in some cases resulted in vigilantes hanging or shooting the thieves. Mexican rustlers were a major issue during the American Civil War (1861–1865); the Mexican government was accused of supporting the habit. American rustlers also stole Mexican cattle from across

4224-430: Was in the area between Parkfield and Cholame , about 60 miles northwest. Nevertheless, it is usually called the "Fort Tejon" earthquake because this was the location of the greatest damage, most of the area being unpopulated at the time. 34°52′26″N 118°53′39″W  /  34.874000°N 118.89430°W  / 34.874000; -118.89430 Source: "List of Butterfield Overland Mail Stations "Itinerary of

4290-444: Was shot by two arrows, one in his right leg and another in his right hand, where he lost two fingers. Both injuries disabled him for life. Timur's injuries have given him the names of Timur the Lame and Tamerlane by Europeans. In Gaelic Ireland , cattle raiding, whether in retaliation for an insult under the code of conduct or to keep the whole clan fed during a difficult winter, was a common part of warfare between Irish clans , as

4356-515: Was sold in marketplaces through the region. The Pokot and Samburu Nilotic populations in northwestern Kenya often raid each other for cattle. Violent cattle rustling has caused massive loss of lives such as the Monday 12 March 2001 raid among the Marakwet in Murkutwo Location, Elgeyo Marakwet County, suspected to have been caused by the Pokot . Conflict over pastures and cattle raids has been happening between Dinka and Nuer as they battle for grazing their animals. Cattle rustling

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