Which country had a supply of 500,000 troops that they used to help defend North Korea and its own border? Soviet Union

Japan

Singapore

China

The Soviet Union

Chinese entrance into the War prolonged the conflict and increased tensions between the U.S. and China. While not directly committing forces to the conflict, the Soviet Union provided material aid to both the North Korean and Chinese armies. The fighting ended on July 27, 1953, when the armistice agreement was signed.

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number 4. should be the correct answer