This was the competition between nations to build up their armaments.

The master of this technology was nicknamed an "ace."

These helped raise money for the war and could be cashed in once the war was over.

This reequired all men between 21 and 30 to register for the draft.

This was the nickname for American soldiers during WWI.

This was the "innocent" British passenger that was sunk by Germany.

The race between Germany and Britain to build as many of these as possible was one of the causes of WWI.

This organization was responsible for creating “Wheatless Mondays” during WWI.

This African American regiment spent more time in combat than any other American unit.

This is the name of Woodrow Wilson's proposed peace plan?

This was the name of the Austro-Hungarian Archduke that was assassinated.

More soldiers died from this than from all other weapons combined.

These people traveled the country giving motivational and patriotic speeches .

This was the biggest contribution women made in the armed forces during WWI.

Americans became famous for their ability to do this better than other soldiers.

This was the agreement that Germany would stop its unrestricted submarine warfare.

The number of casualties as a result of this technology will never be known.

This organization encouraged companies to mass-produce goods.

This was the nickname for the 1918 flu pandemic.

This is the name of the treaty that ended WWI.

Woodrow Wilson said this was the reason why the U.S. needed to enter WWI.

Because of size and cost, only 4 of these were built during WWI.

Passage of these laws meant that people could be fined/jailed for interfering with the war effort, aiding the enemy, or for speaking out against the war.

This refers to the thousands of African Americans who moved north during WWI.

This name refers to the day when WWI ended (not 11/11/11).