From 1945 to 1973, more than 100,000 members of the U.S. military were advisors in Vietnam. Of these, 66,399 were combat advisors. Eleven were awarded the Medal of Honor, 378 were killed and 1393 were wounded. Combat advisors lived and fought with South Vietnamese combat units, advising on tactics and weapons and liaising with local U.S. military support. Bob Worthington's first tour (1966-1967) began with training at the Army Special Warfare...