Temporarily on loan from the National Archives and Records Administration in Washington, D.C., Woodrow Wilson signed Presidential Proclamation 1364 concerning the Declaration of War against Germany...

Temporarily on display in the Main Gallery, the Loos Football is on loan from the collections of the London Irish Rifles Association.

Recently added to the Museum and Memorial's collection, this German officer's overcoat (called a paletot) is a light gray overcoat made of fine wool that was worn by a Hauptmann (Captain) of the 21st...

On March 1, 1917, the American public learned about a German proposal to ally with Mexico if the United States entered the war.

The military has used codes and ciphers for years, but the use and complexity of codes skyrocketed during World War I. Whether sent by telegraph, signal lights, messenger dog, carrier pigeon or early...

Training Circular No. 21 “Ruses and Snares of the Enemy when Retreating” was used by the 77th Division at Camp Upton in early 1918 to train soldiers before going to France.