1 Subjects: “...U-boat...”

2 Table of Contents: “...'s Decision to Conduct Unrestricted U-boat Warfare, 1916 -- Woodrow Wilson's Decision to Enter World War I...”

3 “... in the Atlantic against Germany’s U-boats in 1941, the December 1941 attack on Pearl Harbor, the subsequent naval...”

4 “... the origins of the Japanese space program, from rocket designs based on WW II German U-boats to tiny solid...”