Answer:
Sinking of American merchant ships
Its declared decision on 31 January 1917 to target neutral shipping in a designated war-zone became the immediate cause of the entry of the United States into the war.
Explanation:
make me brainliest
Answer:
It was labeled a "mental illness"
Explanation:
Usually it would be used as blackmail and americans in 1950 were all against gay americans, so somebody finding out you were gay would lead to public despise and possibly being fired.