Why did the American government have to convince Americans to join the war effort? (WW1)

Explanation:

In response to Germany's actions, President Wilson addressed Congress on April 2, 1917, appealing for the United States to enter the war as “the world must be made safe for democracy.” Four days later, the United States declared war on Germany.

"a shortage of traditional labor created new opportunities in the workplace. a major cause of the internment of japanese americans during world war ii was. racial prejudice. in the early 1940's, the "destroyers-for-military-bases deal" with great britain and the lend-lease act were evidence that the united states."

the main reason that the constitution did not proclaim all men to be free and equal is because of the issue of slavery.