Since the mid-eighteenth century, there has been a military presence in Augusta. Fort Western has not had troops garrisoned there since the 1790s, but in 1828, the U.S. Government built an arsenal to protect their interests from Britain. During the Civil War, Augusta was a rendezvous point for soldiers traveling to the front. Many of the soldiers camped on the green in front of the capitol building. In 1862, Camp E.D. Keyes was established in the northwestern portion of the city. During World War I, Camp Keyes was used as a mobilization and training camp for soldiers. The camp eventually became a headquarters for the Maine National Guard. In 1929, the state legislature approved the placement of the Augusta State Airport next to the camp. As the airport grew, the use of the camp as a training facility was no longer possible. Today, it is still used for administrative and logistical purposes by the National Guard.