(A) ** Militarism
(B) Alliances
(C) Nationalism
(D) Imperialism
EXPLANATIONS BELOW
Concept note-1: -Russia’s total military manpower was estimated at 1, 330, 900 as of 2023. Of them, 830.9 thousand personnel were active, 250 thousand were reserve service members, and 250 thousand were paramilitary forces.
Concept note-2: -In the far southeast, Ukraine is separated from Russia by the Kerch Strait, which connects the Sea of Azov to the Black Sea.