The correct answer is the last one, to protect them and their land.
Answer:
During the cold war tensions between the USA and Soviet Union were as tense as could be but with no real action going on, the Cold War was more of a stale mate of one side waiting for the other to do something.
Explanation:
Both sides did not want war but both expected each other to have weapons of mass destruction.
Genghis Khan ruled the Mongol empire that reached its height.
Fort Henry and Donelson are significant because they provided successful defense for the
Union army. During the Battle for Fort Henry, the Union army secured an
important victory for the Union. During the Battle at Fort Donelson, the Union
capture of the Fort closed a vital avenue of invasion by the Confederates.