Where was Inchon located in relation to North Korean lines?

Inchon is positioned beyond the North Korean lines during the Korean War, which played a strategic role in military operations. The city, located on the western coast of South Korea, was the site of a significant amphibious assault led by U.S. and United Nations forces in September 1950. This maneuver aimed to cut off North Korean supply lines and create a new front in the conflict, effectively turning the tide in favor of the United Nations forces.

In this context, the term "beyond North Korean lines" accurately captures the geographical and tactical significance of Inchon at the time, indicating that it was not part of the initially established front lines held by North Korean troops. The other options suggest placements that either misplace Inchon's location or misunderstand the strategic implications of its capture during the war.