The U.S. Coast Guard doesn't always get the respect it's due, mostly because it's the only branch that doesn't always fall under the Department of Defense. But that technicality doesn't mean the Coast Guard doesn't have some cool stuff.
The Wessel was captured after the German surrender in 1945 and the British won it as a spoil of war. An American officer convinced the British to trade it to the U.S. and the ship was renamed the Eagle. She has served as a training vessel and goodwill ambassador vessel ever since.