Why did the us delay entry to world 1 until 1917

Because nobody likes war in the first place so the best thing to do then is to wait it out. like we do every other war. we don't enter until somebody ticks us off.

Why did the us delay entry to world 1 until 1917?

Because of the Germans' decision to resume the policy of unrestricted submarine warfare, and the so-called "Zimmerman telegram," intercepted by the British, in which Germany floated the idea of an alliance with Mexico.