These trade-offs would not be pleasant. Mr. Putin's attack on a democratic neighbor would be rewarded with the acquisition of territory. Yet battlefield results dictate their own reality. Once Western European nations and the United States decided not to send their citizens to fight for Ukraine - an understandable choice - Russia was guaranteed to make gains against its much smaller neighbor. Even so, Ukraine's resolve has been heroic, and it has prevented Mr. Putin from the sweeping victory most military analysts predicted when the invasion began in February 2022.
We have many objections to Mr. Trump's Ukraine policy. He has echoed Mr. Putin's lie that Ukraine started the war, and Mr. Trump humiliated President Volodymyr Zelensky of Ukraine in the Oval Office. "The policy since the beginning of the Trump administration has been to put pressure on the victim, Ukraine, rather than on the aggressor, Russia," Bridget Brink, who resigned as U.S. ambassador to Kyiv last month, recently wrote. Ultimately, though, Mr. Trump does not appear to be a committed Putin ally. He just does not seem to care much what happens in Ukraine. He wants the United States to stop paying for billions of dollars' worth of military aid. Above all, he wants to look personally strong and successful.
Events have presented him with a chance to achieve that outcome. The key step is to demonstrate resolve against Mr. Putin. After more than a quarter-century in power, the Russian leader has come to believe, with some cause, that he can outfox or outlast American presidents. And Mr. Trump has been, by far, the friendliest president toward him. Absent a show of strength from the United States now, Mr. Putin will rationally assume weakness. He will assume that a more expansive victory awaits him in Ukraine.
From the outset, the Russian president has believed that the world's democracies were too soft to stay committed to Ukraine. He has staked the outcome of his war on driving a wedge between the United States and Europe - and America losing interest. Neither should happen. On the contrary, Mr. Trump has ways to ratchet up the cost of continued fighting for Russia and support Ukraine.
He has already won Ukraine's agreement to mine its mineral resources, and he can accelerate the delivery of promised American military supplies. He can impose new sanctions on Russia, as he has threatened. Several Republican senators - including Lindsey Graham of South Carolina and Charles Grassley of Iowa - support new sanctions. "Putin, in my view, is playing us all," Mr. Graham said recently. Another option is to persuade the European Union to give Ukraine about $300 billion in frozen Russian assets. Germany announced new support for Ukraine this week. "Nothing less than the peaceful order of our entire continent is at stake," Chancellor Friedrich Merz has said.