USA HISTORY

A principal reason for the expansion of the United States leadership role at the conclusion of World War II was that the United States

(A) had acquired several new overseas colonies

(B) was given new roles by secret wartime conferences

(C) ** had dominant economic and military strength

(D) joined the newly formed European Common Market

Concept note-1: -Driven by growing consumer demand, as well as the continuing expansion of the military-industrial complex as the Cold War ramped up, the United States reached new heights of prosperity in the years after World War II.

Concept note-2: -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.

Concept note-3: -The Japanese attack on Pearl Harbor on December 7, 1941, ended the debate over American intervention in both the Pacific and European theaters of World War II. The day after the attack, Congress declared war on Imperial Japan with only a single dissenting vote.

Concept note-4: -The United States entered the second World War following the unprovoked attack on Pearl Harbor by Japan on 7 December 1941.