Answer:
The military history of the United States during the Korean War began in the context of the defeat of Japan by the Allied Powers in World War II which heralded the end to 35 years of Japanese occupation of the Korean Peninsula and led to the peninsula being divided into two zones; a northern zone occupied by the Soviet Union and a southern zone occupied by the United States. After negotiations on reunification failed, the latter became the Republic of Korea or South Korea in August 1948 while the former became the Democratic People's Republic of Korea or North Korea in September 1948.
Answer: For centuries, America’s borders were up for grabs.
European nations staked claims on paper while tribes claimed the ground itself, but the border remained a work in progress, an imaginary line, until troops clashed and treaties settled the question.
In 1849, after the Mexican-American War, the United States sent teams of surveyors, soldiers and laborers to mark this new line in the desert, which sounded simple but proved difficult. The teams struggled as the Southwest seethed with conflict.
A line had been drawn, but the border was far from settled.
Explanation: