The President of the United States of America, authorized by Act of Congress, July 9, 1918 (amended by act of July 25, 1963), takes pleasure in presenting the Distinguished Service Cross to Lieutenant Colonel (Armor) Glenn K. Otis (ASN: 0-68668), United States Army, for extraordinary heroism in connection with military operations involving conflict with an armed hostile force in the Republic of Vietnam, while serving with Headquarters Troop, 3d Squadron, 4th Cavalry, 25th Infantry Division. Lieutenant Otis distinguished himself by exceptionally valorous actions on 31 January 1968 as commanding officer of a cavalry squadron defending against the communist Lunar New Year offensive at Tan Son Nhut Air Base. On that date, Viet Cong and North Vietnamese Army forces launched a massive attack on the base and penetrated the defensive wire. Colonel Otis responded to a call for assistance and immediately led his squadron to reinforce the beleaguered friendly elements. Braving devastating rocket, machine gun and mortar fire, he repeatedly ordered low passes over the enemy positions to assess the rapidly changing situation and skillfully coordinate his unit’s defenses. His aircraft was forced down on three occasions by the intense enemy fusillade, but he refused to leave the battle area and quickly secured another helicopter each time. The battle grew in intensity, as he fearlessly landed amid a curtain of fire to coordinate with his ground commanders and encourage his men to continue their staunch defenses. His skillful and aggressive leadership inspired his men to repel the attack and force the determined insurgents to withdraw. Informed that an estimated Viet Cong battalion, poised outside the perimeter, was threatening the air base, he quickly directed his unit in a search and clear operation. Repeatedly exposing himself to savage enemy fire, he led his men in a fierce attack that totally destroyed the enemy forces. His fearless leadership in the heat of battle was instrumental in preventing the vital military installation from falling into enemy hands. Lieutenant Colonel Otis’ 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.