Containment was a United States policy using numbers of strategies to prevent the spread of communism abroad. A component of the Cold War, this policy was a response to a series of moves by the Soviet Union to enlarge its communist sphere of influence in Eastern Europe, China, Korea, and Vietnam.
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I think the most important event was when the pilgrims came to the Americas. Although they came there to escape persecution, they were the first to start a colony and life there. Once that colonization started, many other European also wanted to come to the Americas to find more freedom and escape persecution.
The correct answer for this question is "a. the aztecs spread diseases like smallpox to wipe out enemy populations." The statement that was not a significant factor in the aztecs' expansion of their empire is that the aztecs spread diseases like smallpox to wipe out <span>enemy populations.</span><span> </span>
Assassination of archduke Ferdinand and the invasion of poland
Answer:
Radar
Explanation:
Radar technology employs the use of radio waves in determining the distances speed and location of certain objects. This was instrumental during the war as it helped countries foil secret attacks being planned.
It was used to operate anti-aircraft guns and was used on ships for easy navigation at night and to locate enemy ships and aircraft.