Which Coast Guard Cutter sank a submarine in WW2?

The Coast Guard Cutter that sank a submarine during World War II is the Campbell. This vessel was notable for its active role during the war, particularly in the North Atlantic. The Campbell is credited with sinking the German U-boat U-606 on February 24, 1943, while conducting convoy escort duties.

This action was significant not only as a tactical success but also illustrated the Coast Guard’s critical involvement in naval operations during the war. The Campbell conducted a depth charge attack after detecting the submarine, leading to its sinking, which marked a key moment in the effort against German U-boat threats in the Atlantic theater.

While the other options also represent distinguished Coast Guard Cutters that participated in various operations during the war, they are not credited with the specific accomplishment of sinking a submarine. The actions of these cutters predominantly involved escort missions and patrols, which were essential but did not include the same direct engagement with a submarine resulting in its destruction as was the case with Campbell.