The heavy merchant losses off the American coast gave German submariners what they called their second happy time. American defences were unprepared for the U-boat offensive. The criticism also concerns a failure to take the threat seriously enough, linking the losses to the response as well as the initial lack of preparation.
Notable Point · 3:57:30-3:57:54
American unpreparedness and the U-boats' second happy time
Weak American preparation and response helped German U-boats inflict heavy losses off the coast.