The Korean War was an escalation of border clashes between two rival Korean regimes (each of which was supported by external powers) with the North Korean regime trying to topple the South Korean regime through political and guerrilla tactics. In a very narrow sense, some may refer to it as a civil war, though many other factors were at play.
The Korean War was an escalation of border disputes between two opposing Korean governments, each supported by external powers. North Korea sought to overthrow the South Korean government through political and guerilla warfare tactics. While some may consider it a civil war in a narrow sense, many other factors contributed to its complexity.