Admiral James Stockdale, a decorated US Navy officer and Vietnam War POW, endured 7.5 years of captivity, including 4 years in solitary confinement and 2 in leg irons. He attributed his survival to his belief in the eventual end of his ordeal and his determination to prevail, contrasting this with the optimism of fellow prisoners who lost hope. Stockdale’s philosophy centered on focusing on controllable factors, a mindset that echoes Viktor Frankl’s perspective on maintaining freedom of choice in adversity.