Economic sanctions, diplomatic isolation, and incentives for compliance are all tools that can be used in a non-violent manner. For example, the Iran Nuclear Deal in 2015 was achieved through negotiations and diplomacy. The deal was aimed at limiting Iran's nuclear program and in return, Iran would get relief from economic sanctions.

As for the Russia-Ukraine conflict, it's a complex issue with historical and geopolitical implications. Imposing force might escalate the situation rather than resolving it. A solution might lie in multilateral negotiations and diplomatic pressure, coupled with economic incentives.