President Vladimir Putin believes Russia's economy and its military are strong enough to weather any additional Western measures, sources said.

President Trump’s dramatic shift to a hardline stance against Russia is not rooted in a newfound love for Ukraine, but in a personal fury at being played for a fool by Vladimir Putin. -According to Washington insiders,

In an interview with DW, the mayor of Ukraine's capital Kyiv, Vitali Klitschko, explains what he thinks of US President Donald Trump's recent 50-day ultimatum to Russia. In 50 days more civilians could die,

Putin ally warns Moscow will launch preventative strikes against the west ‘if necessary’ - Russian air defence units destroyed 122 Ukrainian drones overnight that targeted the capital Moscow, official

Vladimir Putin’s conduct has prompted Donald Trump’s shift as Russia’s war effort in Ukraine has gotten only more aggressive.

Former Ukraine aid critics now back Trump's strategy requiring European funding for weapons to Kyiv after the president pivoted his frustration from Zelenskyy to Putin.

Experts fear Russia could emply battlefield nuclear weapons in Ukraine after being given 50 days to stop the fighting by the US

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: