Major Kettles distinguished himself by exceptionally valorous actions on 15 May 1967 while serving as aircraft commander of a helicopter supporting infantry operations near Duc Pho. An airborne Infantry unit had come under heavy enemy attack and had suffered casualties. Major Kettles immediately volunteered to carry reinforcements to the embattled force and evacuate their wounded from the battle site. Although friendly artillery had pounded the hostile positions, the enemy was well entrenched and fighting fiercely. Major Kettles led a flight of helicopters into the landing zone through a savage barrage. Small arms and automatic weapons fire raked the landing zone and inflicted heavy damage to the ships, but Major Kettles refused to leave the ground until all the craft were loaded to capacity. He then led them out of the battle area. He later returned to the battlefield with more reinforcements and landed in the midst of a rain of mortar and automatic weapons fire which wounded his gunner and ruptured his fuel tank. After leading more wounded aboard, he nursed the crippled craft back to his base. He then secured another ship and led a flight of six helicopters to extract the Infantry unit. All but eight men had been loaded when Major Kettles directed the flight to take off. Completely disregarding his safety, he maneuvered his lone craft through a savage enemy fusillade to where the remainder of the Infantrymen waited. Mortar fire blasted out his windshield, but he remained on the ground until the men were aboard. The enemy concentrated massive firepower on his helicopter and another mortar round badly damaged his tail boom, but he once more skillfully guided his heavily damaged ship to safety. Major Kettles’ extraordinary heroism and devotion to duty were in keeping with the highest traditions of the military service and reflect great credit upon himself, his unit, and the United States Army.