Wingate. 1868 Fort Wingate was moved back to the former site of Fort Lyon at Ojo del Oso. 1868 Navajo people returning from Bosque Redondo were temporarily settled at the Oso Del Ojo Fort Wingate before spreading out into the newly established Navajo Reservation. 1873-1886 The fort's troops participated in Apache Wars with troops and recruited Navajo Scouts. 1878 Fort Wingate had 137 troops. 1868-1895 Fort Wingate troops often settled disagreements between Navajo and "citizens" in New Mexico. 1891 Fort Wingate troops assisted Arizona units against angry Hopis. 20th century 1907 Two troops of the 5th Cavalry went from Fort Wingate to the Four Corners area after some armed Navajo. This was the last armed expedition the US Government made against the Navajo. One Navajo was killed and the rest escaped. 1911 A Ft. Wingate company of cavalry went to Chaco Canyon and camped there several days to quell a possible uprising by Navajo. 1914 During the Mexican Civil War over 2,000 Mexican soldiers and their families took refuge at the fort. 1918 Fort Wingate focus turned from Navajo to World War I. 1940 Fort Wingate became an ammunition depot from World War II until 1993. 1944 Fort Wingate supplied 100 tons of Composition B high explosives to the Manhattan Project for use in the first Trinity test. 1950 Bureau of Indian Affairs was given part of the polluted land for an Indian boarding school. 1960–67 Redstone and Pershing 1 missiles were tested among others at Wingate. 1971 DoD Placed Fort Wingate on reserve and re-designated as "Fort Wingate Depot Activity" or FWDA. In 1988, the Base Realignment and Closure round 1 decided to close the Fort. Environmental restoration activities at FWDA began in 1989. In January 1993, the Base Realignment and Closure Act (BRAC) closed the post. 21st century Though the fort's mission ended, the Missile Defense Agency (MDA) continues to use 6,465 acres for launching target rockets to White Sands Missile Range (WSMR). In December 2005, the New Mexico Environment Department (NMED) issued the Army a Resource Conservation and Recovery Act (RCRA) Permit. As of 2016, FWDA spread across 21,131 acres, occupied 15,280 acres of land and a BRAC acreage of 14,666. Environmental cleanup and land transfer to the surrounding community continues to the present, through at least 2022. 5,854 acres have already been transferred to the Department of Interior. Explosives, perchlorates and nitrates are the primary contaminant