GDP is absolutely irrelevant to warfare. The Soviets lost to the incredibly poor country of Afghanistan. Vietnam's GDP was/is a small fraction of Russia's, yet

GDP is absolutely irrelevant to warfare. The Soviets lost to the incredibly poor country of Afghanistan. Vietnam's GDP was/is a small fraction of Russia's, yet America still lost and communism spread through the region. If war came to Western Europe again, I find it unlikely that America could've won.