It remains to be seen just how lasting and severe President Donald Trump’s turn against Vladimir Putin will be. Trump has criticized the Russian president in unprecedented terms in recent days and signaled he’ll send vital weapons to Ukraine.

But his frustration with Putin has grown. Last week, the president said the United States was taking “a lot of bullshit” from Putin. Today, he authorized a significant shipment of U.S. defensive weapons to Ukraine via NATO and threatened Russia with new tariffs if the war does not end in 50 days.

Putin’s historic task, as he saw it, was to restore Russia as a major actor on the international stage. At the 2007 Munich Security Conference, he approached the West without any deference, reproaching the United States and its allies for “unilateral and frequently illegitimate actions” that had “caused new human tragedies and created new centers of tension.

Officials have warned Russian President Vladimir Putin that a demographic crisis could mean the country he leads will be short millions of workers by the end of the decade.

A Russian official says American Daniel Martindale has been rewarded with citizenship for spying on Ukraine, "by decree of our President Vladimir Putin."

A planned classical music concert in Italy, featuring a Russian conductor known to be an old friend and vocal supporter of Russian President Vladimir Putin, is sparking furor after the wife of late Russian opposition leader Alexei Navalny urged Italian authorities to cancel it.

President Donald Trump announced this week that the U.S. will send Patriot air-defense missiles to Ukraine and threatened new tariffs on Russia. Will Vladimir Putin back down? What should Trump's next move be? And what does the future hold for Ukraine? Newsweek contributors Daniel R. DePetris and Dan Perry debate:

If they succeed, Vladimir Putin would be able to claim victory rather than negotiating on Trump’s terms. “Putin will not negotiate as a loser,” one of his longtime associates tells TIME by phone from Moscow.