All this to save old Vova’s decrepit tsarist regime. The elite million or so in the boyar class are at risk too if the cannon fodder class revolts. That might be why the genie is still firmly in the bottle.
TLDW: Belarus has repeater towers up to assist Russian drones in finding their targets in Ukraine (mostly Kyiv). Zelensky has given Lukashenko one week to remove them or Ukraine will remove them.