Final answer:
American soldiers lost their lives in several submarine attacks, with the U.S.S. Reuben James losing 115 sailors in 1941 and the Lusitania incident in 1915 claiming 128 American lives.
Step-by-step explanation:
Throughout history, American soldiers have lost their lives in submarine attacks during various conflicts, but a few notable incidents stand out. On October 31, 1941, the U.S.S. Reuben James was sunk by a German U-boat in the North Atlantic, resulting in the tragic loss of 115 sailors. This event occurred during World War II, before the Japanese attack on Pearl Harbor.
Another significant submarine attack was the sinking of the British freighter Lusitania on May 7, 1915, by a German U-boat, which resulted in the deaths of 128 Americans. The Lusitania was carrying a substantial amount of war material, but the loss of civilian lives led to a public outcry and had considerable implications for U.S. participation in World War I.