World Wars: Role of the US

Differences

Similarities

The neutrality of the US was sunk, resulting in this country joining the wars

At the beginning of both wars, the US remained neutral

The US was part of the Allied powers

Reasons for involvement

Post-war role

World War I

World War II

Although the US played a role in shaping the Treaty of Versailles, it did not enter the League of Nations, which limited American influence in world events

The US was a founding member of the United Nations, a organization that replaced the failed League of Nations

The US played a significant role on the course of both wars since American soldiers participated in major battles and contributed to victory

American industries produced supplies not only for US troops, but also for nations at war

D-Day (on June 6, 1944)

Impact on homefront

Since many white men went to war, women began to work at jobs they had not tried before

Roosevelt and Churchill agreed on the Atlantic Charter, whose aim was to restore peace

World War I

World War II

Sinking of the "Lusitania" before the war and the interception of the Zimmermann telegram that the German government sent to Mexico's government so as to propose a military alliance

1917

Germany sent U-boats after American cargo ships and called on its ally Mexico to invade the US

December 1941

A surprise attack on the US naval base at Pearl Harbor, Hawaii, by Japanese warplanes

Propaganda also promoted patriotism in the US and developed a negative image of the enemy