Why Did the United States Enter World War II? Civics Question 106

The United States entered World War II because Japan attacked Pearl Harbor.

Question 106 asks why the United States entered World War II. Four answers count: the bombing of Pearl Harbor, that the Japanese attacked Pearl Harbor, to support the Allied Powers (England, France, and Russia), and to oppose the Axis Powers (Germany, Italy, and Japan). Naming Pearl Harbor is enough on its own.

What Happened at Pearl Harbor

Pearl Harbor is a United States naval base in Hawaii. On December 7, 1941, Japanese planes attacked it, striking ships and aircraft at anchor and on the ground.

Congress declared war on Japan the next day. Germany and Italy declared war on the United States days later, which put the country into the fighting in Europe as well as the Pacific. The war ended in 1945.

Why the Officer Asks This

The test asks why the country entered five separate wars, in questions 101, 106, 110, 111 and 114, and each one has its own answer. This is the one where the reason is a single place name.

It pairs with question 105, which asks who was president during the Depression and this war, and with question 100, which asks you to name a war fought in the 1900s.

How to Remember It

Two words carry the whole answer: Pearl Harbor. The place is the reason.

World War I gives the pairing that holds it. That war pulled the United States in when German submarines attacked American ships at sea. This war pulled the country in when Japanese planes attacked American ships in a harbor. Ships at sea, then ships in a harbor.

Common Ways People Get This Wrong

Some applicants answer with something from later in the war, describing what American forces did in Europe. The question asks what brought the country in, and that was the attack in December 1941.

Others try to list the Allied Powers and stall partway through the names. “To support the Allied Powers” and “to oppose the Axis Powers” are both accepted without naming a country, and Pearl Harbor needs no list at all.

What to Say on Test Day

Say “because Japan attacked Pearl Harbor.” Then stop.

You do not need the date, the state, or the name of any other country. The place name is the answer.