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Overextending and Unbalancing Russia: Assessing the Impact of Cost-Imposing Options | RAND
Geopolitical Cost-Imposing Measures
Providing lethal aid to Ukraine would exploit Russia’s greatest point of external vulnerability. But any increase in U.S. military arms and advice to Ukraine would need to be carefully calibrated to increase the costs to Russia of sustaining its existing commitment without provoking a much wider conflict in which Russia, by reason of proximity, would have significant advantages.
Increasing support to the Syrian rebels could jeopardize other U.S. policy priorities, such as combating radical Islamic terrorism, and could risk further destabilizing the entire region. Furthermore, this option might not even be feasible, given the radicalization, fragmentation, and decline of the Syrian opposition.
Promoting liberalization in Belarus likely would not succeed and could provoke a strong Russian response, one that would result in a general deterioration of the security environment in Europe and a setback for U.S. policy.
Expanding ties in the South Caucasus—competing economically with Russia—would be difficult because of geography and history.
Reducing Russian influence in Central Asia would be very difficult and could prove costly. Increased engagement is unlikely to extend Russia much economically and likely to be disproportionately costly for the United States.
Flip Transnistria and expel the Russian troops from the region would be a blow to Russian prestige, but it would also save Moscow money and quite possibly impose additional costs on the United States and its allies.