Extract the answer to the question from the following context. Question: What type of operation did the military do and where was it? Context: Southampton has been used for military embarkation, including during 18th-century wars with the French, the Crimean war, and the Boer War. Southampton was designated No. 1 Military Embarkation port during the Great War and became a major centre for treating the returning wounded and POWs. It was also central to the preparations for the Invasion of Europe in 1944.
The answer to this question is:
Southampton has been used for military embarkation