How did the United States government enforce conformity among American citizens during World War I?

The years surrounding America’s involvement in World War I were a watershed for how the United States treated foreigners within its borders during wartime. Immigrants had flooded the United States in the late 19th and early 20th centuries. When the United States declared war on Germany on April 6, 1917, almost a third of Americans were either first or second-generation immigrants. Those born in Germany and even American-born citizens of German descent fell under suspicion of being disloyal.

Explanation:

the answer is a

their confiscation of contraband and the sinking if the lusitania

the correct answer is to reduce tax