Stream of consciousness rationale: The important part for answering this question is: The Western Allies of World War II launched the largest amphibious invasion in history when they assaulted Normandy, located on the northern coast of France, on 6 June 1944.
The question and answer pair are described below.
Q: The Western Allies of World War II launched the largest amphibious invasion in history when they assaulted Normandy, located on the northern coast of France, on 6 June 1944. The invaders were able to establish a beachhead as part of Operation Overlord after a successful "D-Day," the first day of the invasion.

Answer this question based on the passage: where did the allied forces invaded france for a massive liberation of the country on june 6 1944?
A: Normandy