Post USSR disintegration in 1991, two republics within Russia witnessed violent secessionist movement. If Chechnya was one of such republic what was the name of other republic?

Dagestan

Most of the former Soviet Republics are prone to conflicts, and many have had civil wars and insurgencies. Complicating the picture is the growing involvement of outside powers. In Russia, two republics, Chechnya and Dagestan, have had violent secessionist movements. Moscow’s method of dealing with the Chechen rebels and indiscriminate military bombings have led to many human rights violations but failed to deter the aspirations for independence.