The success of the Q-ship program should not be judged by submarine sinkings, but in how it disrupted the rules of war, Auten argued in his book. German U-boats were forced to fire, lose thousands ...

Under the command of Lt. Cmdr. Maurice Jester, the Coast Guard cutter Icarus, shown here, sank a German U-boat off the North Carolina coast during WWII. (U.S. Coast Guard) After the Japanese ...