Korean War: A conflict that took place from 1950 to 1953 and led to the division of Korea into North and South.
Demilitarized Zone (DMZ): A highly fortified buffer zone along the border between North and South Korea, separating them physically.
Ideological Differences: Refers to contrasting political, economic, and social beliefs held by North Korea (communist) and South Korea (capitalist), contributing to their division.