The armed forces in the United States have built a number of military installations in the state of Oklahoma. Some of these units remain in operation. A number of military installations in Oklahoma operated before or during the Civil War era.
– All Marine Field Artillerymen – both officer and enlisted – are trained at the United States Army Field Artillery Training Center. [9] 
(1988–2022) – Nuclear powered attack submarine. Home port at Naval Base Guam. 
Johnston County is a county located in the U.S. state of Oklahoma. As of the 2020 census, the population was 10,272. Its county seat is Tishomingo. It was established at statehood on November 16, 1907, and named for Douglas H. Johnston, a governor of the Chickasaw Nation.
Fort Gibson is a town in Cherokee and Muskogee counties in the U.S. state of Oklahoma. The population was 3,814 as of the 2020 Census. It is the location of Fort Gibson Historical Site and Fort Gibson National Cemetery and is located near the end of the Cherokees' Trail of Tears at Tahlequah.
The Battle of the Washita River occurred on November 27, 1868, when Lt. Col. George Armstrong Custer's 7th U.S. Cavalry attacked Black Kettle's Southern Cheyenne camp on the Washita River.
The Washita River is a river in the states of Texas and Oklahoma in the United States. The river is 295 miles (475 km) long and terminates at its confluence with the Red River, which is now part of Lake Texoma on the Texas–Oklahoma border.
Fort Towson was a frontier outpost for Frontier Army Quartermasters along the Permanent Indian Frontier located about two miles (3 km) northeast of the present community of Fort Towson, Oklahoma. Located on Gates Creek near the confluence of the Kiamichi River and the Red River in present-day Choctaw County, Oklahoma, it was named for General Nathaniel Towson.
California's involvement in the American Civil War included sending gold east to support the war effort, recruiting volunteer combat units to replace regular U.S. Army units sent east, in the area west of the Rocky Mountains, maintaining and building numerous camps and fortifications, suppressing secessionist activity and securing the New Mexico Territory against the Confederacy. The State of California did not send its units east, but many citizens traveled east and joined the Union Army there, some of whom became famous.
Fort Gibson is a historic military site next to the modern city of Fort Gibson, in Muskogee County Oklahoma. It guarded the American frontier in Indian Territory from 1824 to 1888. When it was constructed, the fort was farther west than any other military post in the United States. It formed part of the north–south chain of forts that was intended to maintain peace on the frontier of the American West and to protect the southwestern border of the Louisiana Purchase. The fort succeeded in its peacekeeping mission for more than 50 years, as no massacres or battles occurred there.
The Battle of Honey Springs, also known as the Affair at Elk Creek, on July 17, 1863, was an American Civil War engagement and an important victory for Union forces in their efforts to gain control of the Indian Territory. It was the largest confrontation between Union and Confederate forces in the area that would eventually become Oklahoma. The engagement was also unique in the fact that white soldiers were the minority in both fighting forces. Native Americans made up a significant portion of each of the opposing armies and the Union force contained African-American units.
The 1st Cherokee Mounted Rifles was a cavalry formation of the Confederate States Army in the Trans-Mississippi Theater of the American Civil War.
The Battle of Middle Boggy Depot, also known as the Battle of Middle Boggy River or simply Battle of Middle Boggy, took place on February 13, 1864 in Choctaw Indian Territory, 4 miles (6.4 km) south of what is now Allen in Pontotoc County, Oklahoma. Advancing down the Dragoon Trail toward Fort Washita, Union Colonel William A. Phillips sent out an advance of approximately 350 men from the 14th Kansas Cavalry and two howitzers to attack a Confederate outpost guarding the Trail's crossing of Middle Boggy River. The Confederate force was led by Captain Jonathan Nail and composed of one company of the First Choctaw and Chickasaw Cavalry, a detachment of the 20th Texas Cavalry and part of the Seminole Battalion of Mounted Rifles. The outpost was about 12 miles (19 km) from Muddy Boggy Depot, which was held by the Confederates. The Encyclopedia of Oklahoma History and Culture says that the battlefield was 15 miles northeast of the depot, whereas the battlefield marker says the distance was 12 miles. The Confederate force at the outpost, consisting of 90 poorly armed men, were caught off guard when Willetts attacked them. Outnumbered and outgunned, the Confederates held off the Union cavalry attack for approximately 30 minutes before retreating to the rest of Lt. Col. John Jumper's Seminole Battalion, who were not at the main skirmish. The Confederates retreated 45 miles (72 km) southwest down the Dragoon Trail. The Union advance continued south toward Ft. Washita the next day, but when the expected reinforcements did not arrive Philips' Expedition into Indian Territory stalled on February 15, near old Stonewall.
Joel Bryan Mayes was Principal Chief of the Cherokee Nation.
Fort Washita is the former United States military post and National Historic Landmark located in Durant, Oklahoma on SH 199. Established in 1842 by General Zachary Taylor to protect citizens of the Choctaw and Chickasaw Nations from the Plains Indians, it was later abandoned by Federal forces at the beginning of the American Civil War. Confederate troops held the post until the end of the war when they burned the remaining structures. It was never reoccupied by the United States military. After years in private hands the Oklahoma Historical Society bought the fort grounds in 1962 and restored the site. In 2017, the Chickasaw Nation purchased Fort Washita from the Oklahoma Historical Society and assumed responsibility for the site and its management. Today, Fort Washita is a tourist attraction and hosts several events throughout the year. In August 2023, the Fort Washita Historic Site was placed into federal trust with the U.S. government.
Fort Arbuckle was constructed by the US Army in 1850 to counter raids by Plains Indian tribes on immigrant trains heading west to California and on the settlements of Choctaw and Chickasaw nations in Indian Territory.
Fort McCulloch was a Confederate military fort built by CSA Brigadier General Albert Pike in the Indian Territory during the American Civil War after the Battle of Pea Ridge.
This is a list of the National Register of Historic Places listings in Lincoln County, Oklahoma.
This is a list of the National Register of Historic Places listings in Washita County, Oklahoma.
Fort Cobb was a United States Army post established in what is now Caddo County, Oklahoma in 1859 to protect relocated Native Americans from raids by the Comanche, Kiowa, and Cheyenne. The fort was abandoned by Maj. William H. Emory at the beginning of the Civil War, but then occupied by Confederate forces from 1861–1862. The post was eventually reoccupied by US forces starting in 1868. After establishing Fort Sill the US Army abandoned Fort Cobb. Today there is little left of the former military post.
Black Beaver or Se-ket-tu-may-qua was a trapper and interpreter who worked for the American Fur Company. He served as a scout and guide as he was fluent in English, as well as several European and Native American languages. He is credited with establishing the California and Chisholm trails.
Pickens County was a political subdivision of the Chickasaw Nation in the Indian Territory from 1855, prior to Oklahoma being admitted as a state in 1907. The county was one of four that comprised the Chickasaw Nation. Following statehood, its territory was divided among several Oklahoma counties that have continued to the present.
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