[buwaya]

GDP goes up in a war economy.
Military expenditure counts as GDP.

The peak GDP “growth” the US ever saw was in 1943, 17%

The peak for Germany, also in 1943, 10.3%

[Kazan]

GDP goes up in a war economy.

Thanks to NATO keeping this war going, Russia's economy will continue to grow!

Europe's economy will continue to be as stagnant as its been since the sanction war began and will continue to be until the war is over. Once it's over, most of Europe will happily go back to purchasing cheaper Russian and oil and gas. When that happens, Russia's economy will be better off than before the war began.

And, of course, Russia will also possess the most of productive part of what used to be Ukraine and that will further fuel the Russian economy once the war is over.