Vietnam Medal of Honor Recipient. He was a Lieutenant Colonel with the U.S. Army, 2d Battalion, 506th Infantry, 101st Airborne Division and was posthumously awarded the Medal of Honor for heroism at Fire Support Base Ripcord, Republic of Vietnam, July 1-23, 1970. His official CMOH citation reads as follows: Lt. Col. Lucas distinguished himself by extraordinary heroism while serving as the commanding officer of the 2d Battalion. Although the fire base was constantly subjected to heavy attacks by a numerically superior enemy force throughout this period, Lt. Col. Lucas, forsaking his own safety, performed numerous acts of extraordinary valor in directing the defense of the allied position. On 1 occasion, he flew in a helicopter at treetop level above an entrenched enemy directing the fire of 1 of his companies for over 3 hours. Even though his helicopter was heavily damaged by enemy fire, he remained in an exposed position until the company expended its supply of grenades. He then transferred to another helicopter, dropped critically needed grenades to the troops, and resumed his perilous mission of directing fire on the enemy. These courageous actions by Lt. Col. Lucas prevented the company from being encircled and destroyed by a larger enemy force. On another occasion, Lt. Col. Lucas attempted to rescue a crewman trapped in a burning helicopter. As the flames in the. aircraft spread, and enemy fire became intense, Lt. Col. Lucas ordered all members of the rescue party to safety. Then, at great personal risk, he continued the rescue effort amid concentrated enemy mortar fire, intense heat, and exploding ammunition until the aircraft was completely engulfed in flames. Lt. Col. Lucas was mortally wounded while directing the successful withdrawal of his battalion from the fire base. His actions throughout this extended period inspired his men to heroic efforts, and were instrumental in saving the lives of many of his fellow soldiers while inflicting heavy casualties on the enemy. Lt. Col. Lucas' conspicuous gallantry and intrepidity in action, at the cost of his own life, were in keeping with the highest traditions of the military service and reflect great credit on him, his unit and the U.S. Army.