Name me some guys who would have been household names if not for WW2, Korea, Vietnam or any other conflict... No Joe Louis, please. Guys who ended up dead or unknown because of their duty to country.
Andre Lenglet - lost a leg in WWII Rip Randall - killed in Vietnam Young Perez - died in a concentration camp (I believe his career was over before the war broke out however)
As a sidelight, 3 Division Champ, Barney Ross, 72-4-3, for some reason now forgotten. Retired from boxing, then volunteered for the Marine Corps in WW2. He served with B Company, 2nd Battalion, 8th Marines during the Battle of Guadalcanal in the South Pacific. One night, he and three other comrades were trapped under enemy fire. All four were wounded; Ross was the only one able to fight. Ross gathered his comrades' rifles and grenades and single-handedly fought nearly two dozen Japanese soldiers over an entire night, killing them all by morning. Two of the Marines died, but he carried the third on his shoulders to safety; the other man weighed 230 lb (104 kg) compared to Ross' 140 lb (64 kg). Ross became addicted to morphine from his combat injuries. Ross went to a recovery center and beat his addiction.
