Oil is an essential lubricant in your engine. It lets metal press against metal without damage. For example, it lubricates the pistons as they move up and down in the cylinders.
1 By the time of the Japanese surrender in August 1945, Korea was the second-most industrialized nation in Asia after Japan itself.  But the wartime mobilization of 1937-45 had reintroduced harsh measures to Japanese colonial rule, as Koreans were forced to work in Japanese factories and were sent as soldiers to the front.
Armistice ends the Korean War. After three years of a bloody and frustrating war, the United States, the Peopleâs Republic of China, North Korea, and South Korea agree to an armistice, bringing the Korean War to an end. The Korean War began on June 25, 1950, when communist North Korea invaded South Korea. Almost immediately, the United States secured a resolution from the United Nations calling for the military defense of South Korea against the North Korean aggression.