<h2>The following is the order of events that led to the United States joining World War II based on their occurrence:
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<u>Fascist dictators rise to power and World War I begins: </u>The rise of the Japanese Emperor who bore imperialistic ideology culminated in the early tensions between different nations which eventually resulted in World War I.
<u>The Lend-Lease Act provides Military aid to Allied Forces while the U.S. remains neutral:</u> The United States chose to stay out of the war but help its allies in the war by providing war equipment.
<u>Japan feels threatened and attacks the U.S. naval base at Pearl Harbor, Hawaii:</u> Owing to the help extended by the United States to its allies, Japan chooses to teach the US a lesson by bombing one of the naval bases of the US Navy.
<u>The United States enters into World War II:</u> After the attack on the US Naval base done by Japan, the US decides to participate in the war in order to bring it to an end.