That is Europe vs the US. Europe has almost 800million people, US less than 350million. On a per capital basis the average American has outspent the average European by a significant margin.
EU != Europe. EU has a population of just under 450 million. To get even close to an 800 million number you have to include all of both Russian and all the former Soviet states, which in this scenario would be rather misleading, given the geopolitics of the events under discussion.