What battle was America on Germany soil for the first time in World War 2?

The first battle in which American forces fought on German soil during World War II was the Battle of the Bulge, which began on December 16, 1944. This surprise German offensive aimed to split Allied forces and capture the vital port of Antwerp. American troops, including those from the 101st Airborne Division, held out in the town of Bastogne, playing a crucial role in the eventual Allied victory. The battle marked a significant moment as it demonstrated American resolve and capability in the face of a major German counteroffensive.