I'm guessing the poster was thinking of "Europe" as more like "the EU" or "Europe minus Russia"; 1.1 million of Russia's 6.6 million square miles are part of Eu

I'm guessing the poster was thinking of "Europe" as more like "the EU" or "Europe minus Russia"; 1.1 million of Russia's 6.6 million square miles are part of Europe's 3.93; take it away, and "Europe" drops to more like 2.8 million square miles, a smidge less than the contiguous US.