The Korean War was the first militarized instance of containment, as U.S. and South Korea fought against communist North Korea. ... When the UN Security Council voted to aid South Korea in stopping North Korean aggression, the U.S. agreed to send troops to the Korean Peninsula.
Answer:
If you don’t do something you can’t repeat it as you’ve never done it
Explanation:
On this day in 1939, in response to Hitler’s invasion of Poland, Britain and France, both allies of the overrun nation declare war on Germany.
D because they want the nation to be safe from foreign attacks.
Explanation:
at the time the hot swampy lands were filled with diseases like malaria and were hard to farm in