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,

U.S. President Donald Trump's decision to ramp up arms shipments to Ukraine is a signal to Kyiv to abandon peace efforts, Russia said on Thursday, vowing it would not accept the "blackmail" of Washington's new sanctions ultimatum.

Armenia has signalled it could quit the Collective Security Treaty Organization (CSTO), a security bloc seen as Moscow's version of NATO, after a peace treaty with Azerbaijan

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

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:

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

The president left the door open for talks with his Russian counterpart but complained about Russia’s continued aerial attacks on Ukraine.