How did the allies prepare to launch a Normandy invasion?

Answer:
June 6,1944

making mocklandings on the Isle of Wight and other coastal areas inteh UK.

they then staged on-board in the English channel and sailed towards Normandy
Contributor: Shane
First answer by ID1258771169. Last edit by Shane Bartley. Contributor trust: 0 [recommend contributor recommended]. Question popularity: 1 [recommend question].