COMMENTARY ORIGINALLY PUBLISHED BY WSJ "Ukrainian President Volodymyr Zelenskyy has labeled his military's strikes on Russia's oil infrastructure “the most effective sanctions.” Meanwhile, reports indicate that alongside urging Europe and India to halt purchases of Russian oil, Washington plans to share additional intelligence with Ukraine on Russian refineries, pipelines, and other energy infrastructure. Most discussions about these “sanctions” have focused on their financial implications for Russia. Vladimir Putin relies heavily on corruption and patronage, with oil and gas serving as key revenue streams. Disrupting the flow could force Putin to choose between sustaining the war and maintaining the payouts to...