As Lee Greenwood belted out “God Bless the USA,” 32 of the 61 living Medal of Honor recipients, national and military leaders,

The National Medal of Honor Museum in Arlington is now open to the public. The Medal of Honor is our nation's highest honor for valor in combat. Close to 200 people lined up outside the museum, waiting for the doors to open at 10 a.m. Many of the visitors were veterans, some coming from as far as Alabama and Colorado.

The National Medal of Honor Museum is set to open Tuesday in Arlington, just west of Dallas. It highlights the lives and service of Medal of Honor recipients from the Civil War to the global war on terrorism. Over 3,500 people have received the Medal of Honor, which is awarded by Congress for risking one’s life in combat beyond the call of duty.