what actions or events of the attack on pearl led to a uniting of people in the United States in entering war

The bombing of Pearl Harbor was a pivotal moment in U.S. and world history. The attack thrust the U.S. into World War II and set in motion a series of events that would transform the country into a global superpower and guardian of international order. Seventy-six years later, this legacy of Pearl Harbor now faces perhaps its biggest challenge

Explanation:

Japan killed 2,403 Americans on Dec. 7, 1941. More than 400,000 U.S. soldiers would die in the four years that followed. Their blood helped purchase the defeat of fascism in Europe and Asia and laid the foundation for a post-war international order made in America’s image.

Whether the U.S. would have entered World War II absent Pearl Harbor is a matter of some debate. Scholars such as John Schuessler of Texas A&M argue that President Franklin D. Roosevelt had long been angling for U.S. intervention. From this view, FDR was very much aware that Japanese expansionism in Asia and German aggrandizement in Europe meant trouble for America.

Yet anti-war sentiment at home meant that FDR had to tread carefully. A succession of Neutrality Acts restricted the kinds of assistance that could be rendered to the Chinese, French and British governments, while anti-war groups such as America First boasted hundreds of thousands of members.

We will never know if FDR would have succeeded in maneuvering the U.S. into open hostilities with the fascist powers. Pearl Harbor gave him more than enough cause to declare war on Japan and its allies in Europe. But viewed in historical perspective, it is clear that Pearl Harbor was more than just the gateway to America’s entry into World War II.

Rather, the attack constituted a critical juncture in the history of U.S. foreign relations, sidelining isolationism as a powerful force in domestic politics and making overseas engagement the accepted norm.

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