Please answer the following question: USS Engstrom (DE-50) was an Evarts class destroyer escort constructed for the United States Navy during World War II. She was sent off into the Pacific Ocean to protect convoys and other ships from Japanese submarines and fighter aircraft. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
A:
Mean Of Transportation