The policy threatened neutral shipping and U.S. lives and commerce, directly provoking U.S. protest and accelerating the drift toward American entry into World War I.
Germany's January 31 announcement went into effect on Feb. 1, authorizing unrestricted submarine attacks on ships in the war zone around Britain.
The policy threatened neutral shipping and U.S. lives and commerce, directly provoking U.S. protest and accelerating the drift toward American entry into World War I.
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President Trump has instructed the Pentagon to reduce joint military exercises with South Korea.
Trump indicates a standing order for military action against Iran in response to assassination threats.
Trump informs Congress about the resumption of military strikes against Iran.
The U.S. conducted new airstrikes on Iran as tensions between the two nations escalated.