world war iii checkpoint charlie airmobile machine gun and mortar platoons tus704The rifle companies of the 1st Cavalry Division were fully airmobile with light equipment so that their platoons could be deployed fast and anywhere. The cavalrys support weapons included M60 machine guns. These were deployed to provide additional firepower in defensive situations when establishing a perimeter for a Landing Zone, proving especially effective in Vietnam. The battalion mortar platoon fields the M29 81mm mortar. This is an improved