Explain the Cold War and the first war after WWII, the Korean War? How did the wars get started? Were they necessary to stop the spread of communism? (5-8 sentences)
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The Korean war began on June 25, 1950, when some 75,000 soldiers from the North Korean People’s Army poured across the 38th parallel, the boundary between the Soviet-backed Democratic People’s Republic of Korea to the north and the pro-Western Republic of Korea to the south.

This invasion was the first military action of the Cold War. By July, American troops had entered the war on South Korea’s behalf.As far as American officials were concerned, it was a war against the forces of international communism itself.

After some early back-and-forth across the 38th parallel, the fighting stalled and casualties mounted with nothing to show for them. Meanwhile, American officials worked anxiously to fashion some sort of armistice with the North Koreans.

The alternative, they feared, would be a wider war with Russia and China–or even, as some warned, World War III. Finally, in July 1953, the Korean War came to an end.

In all, some 5 million soldiers and civilians lost their lives in what many in the U.S. refer to as “the Forgotten War” for the lack of attention it received compared to more well-known conflicts like World War I and II and the Vietnam War. The Korean peninsula is still divided today.

Explanation: Hope this helps!

https://www.history.com/topics/korea/korean-war