Please answer the following question: Given the following passage  "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.",  answer the following question. Note that the answer is present within the text.  Question: The wounded were what in the major centre?
A:
treating