I deny, specifically and intentionally, all of the things you have described as "undeniable".
1) Russian forces near Kiev were never defeated. They were withdrawn as part of a "good faith gesture" associated with the PEACE AGREEMENT that Ukraine had negotiated with Russia in the weeks following the start of the conflict.
From March 29. 2022:
"Russia says it will reduce military operations near Kyiv as peace talks continue"
As reported by REUTERS:
"Russia has completed withdrawal from around Kyiv -U.S. defense official"
Regarding DPRK troops:
"Pentagon Chief Says Cannot Confirm Reports North Korean Troops in Russia for Possible Ukraine Deployment"
Regarding Syria:
Russia never "controlled" Syria. Syria was an ally Russia paid Syria a LOT of money to lease ports and bases. But unlike the USA, Russia does not make every ally into a vassal.