The museum was officially inaugurated on July 7, 1995. The museum is dedicated to General George S. Patton Jr., commander of the 3rd U.S. Army, whose troops liberated the town of Ettelbruck for good on december 25, 1944.

More than 1000 photographs and documents witness about the German invasion in May 1940, the period of occupation of the Grand Duchy and the liberation of the country by American troops in September 1944.

A second part of the museum shows numerous weapons, parts of arms and pieces of equipment that were discovered or excavated during the past few years on the Ardennes battlefield. Another section of the museum is dedicated to the air war and battles in the skies over Luxembourg.

Another section of the museum is dedicated to the airwar and battles in the skies over Luxembourg.