A policy of extending a country's power and influence through diplomacy or military force.
OR
rule by an emperor
Answer:
during the american civil war the south succeeded the union to form the confederate states of america and wanted slavery to stay legal for as long as the confederate states lived many took over american bases including one called fort sumter this kicked off the american civil war
The U.S. and Great Britain fought over the border between the U.S. and Canada. In 1818, they had agreed that the Oregon Territory would be settled by both countries. In 1846, though, the Treaty of Washington expanded the U.S. border with Canada at the 49th parallel to the Pacific Ocean.
<span>Oregon Country was divided between Britain and the United States at the 49th Parallel.
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When North Vietnam acted against South Vietnam and sent troops into it in the early 1960s, Congress authorized the president to escalate the conflict.
<h3>What happened after North Vietnam attacked a U.S. Warship?</h3>
The Gulf of Tonkin incident saw the North Vietnamese navy attack a U.S. warship.
This led to the Johnson administration asking the U.S. Congress for permission to escalate the conflict which was granted to them.
Find out more on the Gulf of Tonkin incident at brainly.com/question/15593184.
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