The United States committed to a Cold War policy of mutual defense when it "(3) joined the North Atlantic Treaty Organization <span>(NATO)" which contained the Soviets. </span>
In 1917, Germany, determined to win its war of attrition against the Allies, announced the resumption of unrestricted warfare in war-zone waters. Three days later, the United States broke diplomatic relations with Germany, and just hours after that the American liner Housatonic was sunk by a German U-boat.
I think it is true but if you have a history book with you I say look it in your book to if true is the answer
