Unrestricted submarine warfare was first introduced in World War I in early 1915, when Germany declared the area around the British Isles a war zone, in which all merchant ships, including those from neutral countries, would be attacked by the German navy.
Answer:
queen liliuokalani was the queen of Hawaii, and cause Hawaii to be annexed by the US.
To be anle to learn and know how to interact with people.
Jim Crow laws, which helped segregate African Americans from White Americans.
which issue is most likely to concern a labor union. the answer is minimum wage
