The license plate is a date. Look it up. Whether or not Eisenhower’s threats of nuclear attacks helped, by July 1953 all sides involved in the conflict were ready to sign an agreement ending the bloodshed. The armistice, signed on July 27, established a committee of representatives from neutral countries to decide…It is in reference to the Korean war.
After three years of a bloody and frustrating war, the United States, the People’s Republic of China, North Korea, and South Korea agree to an armistice, bringing the fighting of the Korean War to an end. The armistice ended America’s first experiment with the Cold War concept of “limited war.”
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 North Korean aggression. In a matter of days, U.S. land, air, and sea forces had joined the battle. The U.S. intervention turned the tide of the war, and soon the U.S. and South Korean forces were pushing into North Korea and toward that nation’s border with China. In November and December 1950, hundreds of thousands of troops from the People’s Republic of China began heavy assaults against the American and South Korean forces. The war eventually bogged down into a battle of attrition.
https://www.history.com/this-day-in-history/armistice-ends-the-korean-war