Medal of Honor, seven the Distinguished Service Cross, two the Navy Cross, at least 73 the Silver Star, and 94 the Distinguished Flying Cross. Following World War II, returning veterans were not required to serve in the Corps and the great influx of veterans swelled the number of civilian students. Civilian students out-numbered cadets for the first time in 1946. That same year Air Force ROTC was introduced to Virginia Tech. Initially civilian-cadet relations were not good as most veterans were attending Virginia Tech for the first time. Thanks to the regimental commander, Cadet Robertson (class of 1949), a World War II Coast Guard veteran, greater understanding was promoted among his fellow veterans and the Corps continued to grow and flourish. During the following years the Corps would expand again back to a regiment and eventually organize into four battalion-size units. The Cadet 1st Battalion was housed at Radford Army Arsenal for two years at "Rad-Tech." There, in World War II Army barracks, the cadets lived and took many of their classes. For unavailable classes, a fleet of buses brought them back to the main campus. As new dorms were completed the battalion returned to campus. Korean War During the Korean War, 1,867 corps alumni served, of whom 30 died in service. During the war, First Lieutenant Richard Thomas Shea, Jr. (Class of 1949) received the Medal of Honor posthumously for his actions at Pork Chop Hill as a company commander. In 1952, the university employed a retired general as the Commandant of Cadets. This was a departure from policy since 1884, where the senior active duty military instructor functioned as commandant. 1950s, 1960s, and 1970s In 1958, Virginia Tech became the first traditionally white southern college to graduate an African American, with the graduation of Cadet Charles Yates (class of 1958). In a move to expand educational opportunities at Virginia Tech, the board of visitors made participation in the Corps completely voluntary starting in 1964. However, participation in ROTC continued to also require Corps membership. The Vietnam War period saw unrest on campus outside the Corps ranks. In 1970 demonstrations were conducted with the aim of halting Corps drill. Cowgill and Williams Hall were occupied and over 100 students were arrested. Other incidents occurred including the suspected arson of an on-campus building. Civilian-cadet relations were at an all-time low. Throughout all of this, the Corps maintained discipline and high