Answer:Sinking of American merchant ships
Explanation:In early 1917 Berlin forced the issue. 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.
Wilson tried to keep the United States neutral during World War I but ultimately called on Congress to declare war on Germany in 1917. After the war, he helped negotiate a peace treaty that included a plan for the League of Nations. Although the Senate rejected U.S. membership in the League, Wilson received the Nobel Prize for his peacemaking efforts.
This may help
Answer:
D)the publication of the Emancipation Proclamation is the answer I'm not sure tho
Answer:
B. all thirteen states had to obey it.
Explanation:
In the early stages of the Nation, they came upon an agreement where if 9 out of 13 states ratified the Constitution, all of them had to do it, many states did it promptly, but New York, the last state that ratified it, was a difficult part because a lot of anti-federalists pushed not to do so, including Governor George Clinton, all in all they ended up ratifyin it in mid-1788.