I lived through all these wars, was in the service during the Korean War and Vietnam. Often thought 'Why can't we win?', concluded it was because of Red China just waiting across the border ready to pounce, we we're afraid of a flood of Chinese storming across the border. But could that be the whole reason, or was it something to do with our military philosophy? This man has some interesting thoughts on the subject using WW2 as a template.