Russia's capacity to help is very limited, unlike the US Empire they don't have hundreds of overseas millitary bases. The Monroe Doctrine means that unless Russia wanted to give Venezuela nukes, like they did for Cuba back when Russia was socialist, Latin Americans are mostly relying on their own power.

Not sure why you're bringing up Russia, though, I never expected they would help and didn't mention them because of that. Maybe some arms shipments, but that's about it.