The U.S. Army Military District of Washington, headquartered at Fort Lesley J. McNair in Washington, D.C., is the largest partner sup- ported by Joint Base Myer-Henderson Hall and is the representative of the Army in the National Capital Region.

USAMDW serves as the Army Forces Component to, and core staff element of, the Joint Force Headquarters-National Capital Region, and provides executive, operational, ceremonial and musical support across a full spectrum of worldwide responsibilities to support our nation’s leaders. It accomplishes this mission in partnership with the other services and its three major subordinate units, the 3d Infantry Regiment “The Old Guard,” The U.S. Army Band “Pershing’s Own” and the Army Aviation Brigade.  TAAB includes the 12th Aviation Battalion, the 911th Technical Rescue Engineer Company and the U.S. Army Priority Air Transport. USAPAT provides high-priority, short-notice air transport for the Army’s senior leadership, senior leaders of the Department of Defense and government officials as directed. The USAPAT flies worldwide missions.

MDW also exercises senior commander responsibilities for four installations to include JBM-HH as well as the Joint Personnel Property Shipping Office - D.C. area.

Two of MDW’s subcommands are based on the Fort Myer portion of JBM-HH. The 3d U.S. Infantry Regiment (The Old Guard) and The U.S. Army Band are based on JBM-HH. The Soldiers of these units are familiar sights in the National Capital Region, daily demon- strating the excellence of the U.S. Army to the nation through activities at Arlington National Cemetery. From ceremonial bands or solitary buglers at funerals with military honors to the around-the-clock honor guard kept by the sentinels at the Tomb of the Unknowns, these Soldiers accord the dignity and respect earned by those who have given their lives in military service to the nation.

In addition, they participate in special events that range from arrival ceremonies for visiting dignitaries to concerts and parades open to the public. Among them is the performance of Twilight Tattoo, an hourlong military pageant where audiences experience a glimpse into American history through performances by The U.S. Army Blues, vocalists from The U.S. Army Band Downrange and U.S. Army Band Voices, The Old Guard Fife and Drum Corps, and The U.S. Army Drill Team. Twilight Tattoo is normally held at JBM-HH and times and locations of this and other well-attended MDW events are available on the MDW website at www.mdw.army.mil or twilight.mdw.army.mil.

MDW also has the responsibility of providing military justice to over 95 organizations based in the National Capital Region whose personnel operate worldwide. From enlisted personnel from other services to military attaches in U.S. embassies to astronauts who fly through space, the commander of USAMDW is the general court martial convening authority, an important responsibility that must be met to the letter.