Cold War: The Cold War was an ideological struggle between the United States (and its allies) and the Soviet Union (and its allies) that lasted from the end of World War II until the early 1990s. The Korean War was considered one of the proxy conflicts during this period.
38th Parallel: The 38th parallel is a line of latitude that served as the initial armistice line between North Korea and South Korea during the Korean War. It later became the boundary demarcation line between the two countries.
DMZ (Demilitarized Zone): The DMZ is an area established as a buffer zone between North and South Korea after the Korean War. It is heavily fortified, and no military forces are allowed within its boundaries.