Who sent troops to north korea apex?

China

Explanation:

The Korean War was a  conflict between the Democratic People’s Republic of Korea, known as North Korea, and the Republic of Korea, known as South Korea. By June 1950, North Korea, with support from the Soviet Union, invaded the South.

That´s when the war reached international dimensions, as the United Nations and the United States joined the South Koreans side in war, while the People’s Republic of China came to North Korea’s aid.

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the answer that best explains what happened to george washington at fort necessity, pennsylvania is : washington was attacked by the french but was able to negotiate with them to peacefully end fighting. the battle took place on july 3, 1754. the battle is considered as being the start of the french and indian war.