LSs U.S. military trucks and jeeps driving along winding, dusty roads in Korea, kicking up dust clouds. VO: "Haze rises over the hills of Korea. But it's not from exploding shells, it's dust churned into the air by the rolling wheels of the U.N. advance. The Marines are moving forward, meeting little resistance from the Chinese but plenty from their old enemy, dirty fighting terrain. Sticky mud just a few days ago, the dust now clogs the air, clogs the machinery, and hampers operations. Meeting on a curve in this haze is tricky business."