<span>That tension came to a head in Korea. Overshadowed by WWII, the Korean War has often been called America's "forgotten war," though like Vietnam it was part of a larger Cold War struggle to extinguish communism. In 1950, North Korean communist troops invaded South Korea, which was an American ally.</span>
Answer:
Feudalism relied on personal and/or family honor as well as self–interest to work.
Explanation:
Answer: retrograde motion
Retrograde motion is an apparent change in the movement of the planet through the sky. It isn't real in that the planet doesn't physically start moving backwards in its orbit. It just appears to do so because of the relative positions of the planet and Earth and how they're moving around the Sun.