Located on the island of Hawai'i this area was used as a live-fire training area during World War II, although it was not established as an official military installation until 1955.
Pohakuloa Training Area is about 133,000 acres, and its training areas have been used by all branches of the military for everything from small-arms training to artillery and mortar firings.
Camp Guernsey JTC is a 77,000 acre facility used by both the Wyoming Army National Guard and the US Air Force.
Camp Guernsey has facilities for all manner of equipment, from pistol and rifle ranges to bomb targets that can handle up to a 500 lb bomb.
Established in 1909, Fort McCoy has been in almost constant use ever since. In 1938 the camp expanded from 14,000 to almost 50,000 acres and was used as a large-scale training and maneuver area for soldiers entering World War II. It performed the same mission during the war in Korea, and afterward was used mainly to train National Guard and Reserve units from around the country.
Today Fort McCoy is used as a Total Force Training Center, training over 100,000 military personnel every year.
Camp Dawson was established in 1909, and trained troops up until the the outbreak of WWI. After WWI, it was unused until 1928, when it was used by the West Virginia Militia.
During WWII, it was used as a hold camp for POWs, and since then has been used to assist in training West Virginia National Guard and Reserve soldiers. The camp consists of over 4,000 acres and has rifle, small arms, and demolitions ranges, combat simulator equipment, several MOUT (Military Operations in Urban Terrain) sites for urban combat training, and classrooms for instruction and training.
Originally 160,000 acres was leased by the Army from 1942-1946 for use primarily as an anti-aircraft artillery range, in 1951 the Army purchases 261,000 acres for a permanent training area capable of support large-scale training operations. In 1987 the training area was enlarged to its current size of about 327,000 acres, and is used for training exercises large and small by all branches of the military.
Officially known as Joint Base Lewis-McChord (combining the Army's Fort Lewis and the Air Force's McChord AFB) the original Army installation was founded in 1917. Joint Base Lewis-McChord (JBLM) tenant units for the US Army include the US Army I Corps, including numerous infantry, medical, engineer, and support personnel. JBLM contains more than 86,000 acres with more than 25,000 soliders and civilians working on base.
Camp Pendleton was founded in 1912, and has been in near-constant use since that time. Originally founded as a state rifle range, it was used by the Navy in WWI, and by the Army in WWII. It now servers primarily to train personnel of the Virginia National Guard, although soldiers from other units and other federal authorities will also use the base from time to time.
Established in 1914, Fort Story; previously a sub-installation of Fort Eustis, is now a sub-installation of US Navy Little Creek Amphibious Base. Because of its location at the entrance to Chesapeake Bay, Fort Story contains a mixture of both soft and hard sand beaches, grassy dunes and cyprus swamps. Because of these natural features it is commonly used by Army for training in amphibious and Joint Logistics-Over-the-Shore (LOTS) training.
Established in 1941, shortly before America entered World War II, Fort Pickett was primarily used for infantry training - it's size and location meant it could train large numbers of soldiers in both mountainous and coastal environments.
After World War II, Fort Pickett became the home of the Virginia National Guard Training Center, and was used for training both Reserve, National Guard, and active-duty soldiers. Today it still trains soldiers from around the country, as well as federal agents and Canadian soldiers, and is entirely run by the Virginia National Guard.
Established in 1819, Fort Monroe has played an important role in many American conflicts, from the Civil War until the installation was decommissioned in 2011 by the BRAC 2005.
Fort Monroe's major tenant unit was the US Army Training and Doctrine Command (TRADOC), which was moved to nearby Fort Eustis.