resoundingly: economic production
Foregone production due to supply chain disruption vastly outnumbers equipment destruction in battle
Germans may have had the most advanced planes and subs, but couldn't make enough or fuel them consistently. Would have made a big difference if they could
Dropping mines in Japanese ports sunk more ships than Americam subs ever did
Oil was a big deciding factor in the Pacific front Shortages usually were met with reduced training hours, which had pretty disastrous effects
Air power was pretty much the dominant factor
Gonna stop taking notes, there are too many good snippets. Just read the main thing