The Neutrality Laws. Informally a policy of isolationism kept us out of the war until the USA was attacked.
what was the policy that kept the us out of the war for three years
Neutrality
neutrality
isolationism and neutrality
In foreign policy President Eisenhower kept the containment policy in the Cold War and ended the Korean War.
It depends on which war your talking about, if WW1 then America thought there was no point in fighting in the war because it was stupid and it started for silly reasons then the Americans joined in and helped the British
Neutrility
There was no 355 years war.
Detente means to relax or to relief tension. When the cold war started Detente first kept thing relaxing but as it went on it got worse.
None. It was a successful compromise that kept the peace for thirty years.
Isolationism
Three.