To authorize the reburial in the Memorial Amphitheater at Arlington National Cemetery of an unknown American who lost his life while serving in the Union Army of the United States during the Civil War, and for other purposes.

Authorizes and directs the Secretary of Defense to cause to be brought from a national cemetery for reburial in the Memorial Amphitheater of Arlington National Cemetery, Virginia, the remains of an unknown Union soldier who served and died during the Civil War.

Authorizes appropriations.