Yes, the human rights abuses in Chechnya demanded an international response. Any time that human rights are being violated on a mass scale by a government, an international response in warranted. Human rights should be preserved anywhere, and to suggest otherwise is asinine. Thus, the international response to the rights violations in Chechnya was warranted.
Yes, there were human rights abuses in Chechnya that demanded an international response and foreign military intervention in Chechnya was appropriate. Ultimately the military intervention was called for because theres always going to be an uphill battle and sometimes you're going to have to lose but military intervention helped defend human rights.