Plenty economic sanctions have been imposed by the United States against Russia in a bid to suffocate them financially to an extent that they become incapable to fund the war they have started against Ukraine. I don't see these sanctions as completely effective as it so happens that I came across this article about Europe's dependence on the Russian oil, which is about 30%, Germany as well about 11%, the Netherlands (11%), and some Asian countries substantially depend on Russia for energy. So invariably Europe and other countries like Germany, Netherlands and others are still funding the Russian war indirectly even though the United States tries to boycott them.
Source-
https://time.com/6156015/us-oil-ban-russia-consequences/