 The museum is arranged in a largely chronological manner, beginning with the American Revolutionary War, to the American Civil War, through the Philippine–American War, World War I, World War II, the Korean War, the Vietnam War, The 1980s, and War in Afghanistan.Following the main "timeline" is a Weapons Gallery, Poster Gallery, and an exhibit on African American military history.The museum's collection also includes a section of the Berlin Wall, a handwritten order by General George Washington issued after the Battle of Brooklyn (On loan from the MacIntosh Family), and a great deal of General Officer Uniforms, including former possessions and clothing from Mark Clark, James Doolittle, and Colin Powell.