Initially rejected by the U.S. Army during World War II due to his frail physique, he volunteered for Project Rebirth. The experimental Super-Soldier Serum developed by Dr. Abraham Erskine greatly enhanced his body to the peak of human physicality. Wielding an indestructible shield, Captain America is a master martial artist who focus on acting defensively. Alongside his partner Bucky and the Invaders, he helped the Allies win the war, but not before becoming lost at sea and frozen in ice in suspended animation for decades.
