New Technology Used: The latest weapons technology was deployed during the struggle, such as jet fighters. The US threatened to use the atomic bomb against Communist forces. Early in the Korean War, air controller teams used World War II methods to call in airstrikes. A team in a jeep would observe the enemy and call for air support by radio, directly controlling air strikes at the front line. At first, there were many casualties because the jeeps were often visible to enemy forces, but then later on they created highly successful Mosquito airborne forward air controllers. They took over most of the TACPs original role and they were used as the war progressed. The US had sidearm pistols, rifles, shotguns, and automatic weapons. The communist states had hand grenades and rifle grenades, rocket launchers, recoilless rifles, and flamethrowers. New Technology Used: The latest weapons technology was deployed during the struggle, such as jet fighters. The US threatened to use the atomic bomb against Communist forces. Early in the Korean War, air controller teams used World War II methods to call in airstrikes. A team in a jeep would observe the enemy and call for air support by radio, directly controlling air strikes at the front line. At first, there were many casualties because the jeeps were often visible to enemy forces, but then later on they created highly successful Mosquito airborne forward air controllers. They took over most of the TACPs original role and they were used as the war progressed. The US had sidearm pistols, rifles, shotguns, and automatic weapons. The communist states had hand grenades and rifle grenades, rocket launchers, recoilless rifles, and flamethrowers.