Final answer:
The Navy was deeply involved in the Battle of the Atlantic, Operation Torch, and the D-Day Invasion, where strategies such as convoys, sonar, and code-breaking played pivotal roles.
Step-by-step explanation:
During World War II, the Navy was heavily involved in Operation Torch, the D-Day Invasion, as well as the Battle of the Atlantic. The Battle of the Atlantic was a critical campaign where the goal of the German navy was to sink as many Allied cargo ships as possible in order to cut off supplies to Britain, thereby forcing surrender or deterring American involvement. However, the adoption of the convoy system, advancements in sonar technology, and the breaking of the Enigma code turned the tide in the Allies' favor. By 1943, the US Navy effectively controlled the Atlantic Ocean. Operation Torch was the Allied invasion of North Africa, and the D-Day Invasion was the critical landing on Normandy's beaches that led to the liberation of Paris and opened up a second front in Europe.