On may 7, 1915, a German submarine sank the British ocean liner Lusitania, ensuing in the deaths of nearly 1,200 humans, which include 128 people. The incident strained diplomatic relations between Washington and Berlin and helped turn public opinion towards Germany.
Submarine conflict inside the Atlantic saved tensions excessive, and Germany's sinking of the British ocean liner Lusitania on may also 7, 1915, killed greater than 120 U.S. Citizens and provoked outrage within the U.S. In 1917, Germany's attacks on American ships and its attempts to meddle in U.S.-Mexican relations drew the U.S.
The Japanese assault on Pearl Harbor on December 7, 1941, ended the debate over American intervention in both the Pacific and European theaters of World conflict II. The day after the attack, Congress declared battle on Imperial Japan with best a single dissenting vote.
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