The President of the United States of America, authorized by Act of Congress, July 2, 1926, takes pleasure in presenting a Bronze Oak Leaf Cluster in lieu of a Second Award of the Distinguished Flying Cross to Warrant Officer One (WO-1) Donald E. Williams, United States Army, for heroism while participating in aerial flight evidenced by voluntary actions above and beyond the call of duty, while serving with the 191st Assault Helicopter Company, in action on 12 March 1968, in the Republic of Vietnam. Warrant Officer Williams distinguished himself by exceptionally valorous actions while serving as aircraft commander of a UH-1D helicopter on a visual reconnaissance near Cho Dem. Two enemy were spotted in a sampan and Warrant Officer Williams obtained permission to open fire on the foe. The enemy took refuge in a nearby house, yet he skillfully directed a continuous barrage of suppressive fire upon them. A squad of infantry was requested and he twice performed a single ship combat assault on the enemy. Upon completion of the assault, he orbited and immediately spotted enemy soldiers moving out of the area. Responding quickly, he landed his aircraft and summoned the ground forces. With complete disregard for his own safety, Warrant Officer Williams landed his helicopter beside enemy suspects on three separate occasions and each time the suspect was immediately confirmed as a foe. His actions were in keeping with the highest traditions of the military service and reflect great credit upon himself, his unit, and the United States Army.