ALFA
The second President of Afghanistan, Hafizullah Amin, was killed by the KGB's Alpha Group in Operation Storm-333. Presidents of the unrecognized Chechen Republic of Ichkeria organized by Chechen separatists including Dzhokhar Dudaev, Zelimkhan Yandarbiev, Aslan Maskhadov, and Abdul-Khalim Saidullaev, were killed by the FSB and affiliated forces.