Operation Dauntless
Operation Dauntless was a military operation performed by the United Nations Command (UN) during the Korean War designed to advance the UN lines to positions 10–20 miles (16–32 km) north of the 38th Parallel designated the Wyoming Line which would threaten the Chinese and North Korean logistics hub marked out by the towns of Pyonggang, Ch'orwon and Gimhwa-eup named the Iron Triangle. The operation immediately succeeded Operation Rugged which took the UN forces to the Kansas Line 2 to 6 miles (3.2 to 9.7 km) north of the 38th Parallel.