WORLD HISTORY

Detailed explanation-1: -Following World War II, the United States began an economic boom that brought unparalleled prosperity to a majority of its citizens and raised Americans expectations, breeding a belief that most economic and social problems could be solved.

Detailed explanation-2: -Far from the isolationism that characterized US global politics, the immediate aftermath of World War II established a clear desire among American political and economic leaders to protect this newfound power and to secure the United States as the leader of the “free world.”

Detailed explanation-3: -Lend-Lease and Military Aid to the Allies in the Early Years of World War II. During World War II, the United States began to provide significant military supplies and other assistance to the Allies in September 1940, even though the United States did not enter the war until December 1941.

Detailed explanation-4: -On December 7, 1941, following the Japanese bombing of Pearl Harbor, the United States declared war on Japan. Three days later, after Germany and Italy declared war on it, the United States became fully engaged in the Second World War.

Detailed explanation-5: -Without the American entry into World War II, it’s possible Japan would have consolidated its position of supremacy in East Asia and that the war in Europe could have dragged on for far longer than it did.