&quot;Pundits have long puzzled over why Japan, embroiled in an unwinnable war in China, attacked a country that supplied most of its oil and had an economy 70 times its own.&quot;<p>That&#x27;s off by like an order of magnitude. Numbers like this are never exact, but no way was the difference 70x. Wikipedia&#x27;s numbers have it at ~5.5x: <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Military_production_during_World_War_II#Reference_data_for_summary_tables" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Military_production_during_Wor...</a>