|Security Service of Ukraine|
The Head of the Security Service of Ukraine
Major Alexander Degtyarev
The Security Service of Ukraine (Ukrainian: Служба Безпеки України (СБУ); Sluzhba Bezpeky Ukrayiny (SBU)) is Ukraine's special-purpose law-enforcement agency and main government security agency in the areas of counterintelligence activity and of combatting terrorism.
The SBU has only appeared in S.T.A.L.K.E.R.: Call of Pripyat. The protagonist, Major Alexander Degtyarev, is a SBU agent sent into the Zone (disguised as a stalker) to investigate the failure of Operation Fairway.