The responses of China and Japan to Western Imperialism were similar in several significant respects. Each nation, for centuries, successfully held back Western incursions into their territories and economies. Both China and Japan were ultimately able to maintain this policy of isolationism until the 19th century, when each finally succumbed to external pressures, though to differing degrees
Answer:
Treaty of Versailles
Explanation:
Treaty of Versailles, peace document signed at the end of World War I by the Allied and associated powers and by Germany in the Hall of Mirrors in the Palace of Versailles, France, on June 28, 1919; it took force on January 10, 1920.
I would say A as well, because the US failed to have North Vietnam stay united with South Vietnam, thus it did not slow the spread of communism. The war was long had hard, so it discouraged military service. The Soviet Union gained influence because they helped the Viet Cong and North Vietnam.