Up to 50,000 fighters are under Wagner group's command in Ukraine: UK

According to the British Ministry of Defence, the Russian mercenary Wagner Group "very definitely now commands up to 50,000 fighters in Ukraine and has become a crucial component of the Ukraine operation."
The paramilitary organization was formally registered as a legal entity in Russia on December 27. Without mentioning combat services, the group identified "management consulting" as their primary activity.
According to the ministry's most recent intelligence update, "it is not yet obvious to what degree the 'PMC Wagner Centre' entity will be employed to administer Wagner's paramilitary action."
