Following several days of consultations with the Cambodian government, South Vietnamese troops, supported by artillery and air strikes, launch their first major military operation into Cambodia. The South Vietnamese encountered a 300-man Viet Cong force in the Kandal province and reported killing 53 communist soldiers. Two teams of U.S. helicopter gunships took part in the action. Three South Vietnamese soldiers were killed and seven wounded.
This Day In History: March 27