The United States missed the chance to stop the aggression of Russian President Vladimir Putin in Ukraine back in 2014. Insufficient actions at that time led to the loss of a deterrent factor, former US Secretary of State Mike Pompeo says during the Black Sea Security Forum.

Towns evacuated after Moscow seizes territory ahead of possible new offensive - Vladimir Putin’s forces have pushed forward in Ukraine’s Sumy region as Kyiv warns of possible significant offensive

Ukraine says Russia launched its biggest drone strike to date after Trump called Putin crazy for stepping up his offensive and "needlessly killing a lot of people."

US President Donald Trump believes that Russian President Vladimir Putin is stubborn. He holds the same opinion about Ukrainian President Volodymyr Zelenskyy, Trump made this statement while speaking with journalists at the US White House.

Vladimir Putin will attack a Nato country if he wins in Ukraine, former CIA chief David Petraeus has warned. The former US general and intelligence chief claimed Russia could invade Lithuania or another Baltic state following any success in its current military campaign.

Welcome to the online version of From the Politics Desk, an evening newsletter that brings you the NBC News Politics team’s latest reporting and analysis from the White House, Capitol Hill and the campaign trail.

The Russian leader Vladimir Putin is reportedly planning to hand his Kremlin throne to his second daughter, a former high-kicking rock'n'roll dancer, who has a cruel nickname based on her appearance

Putin using North Korean ballistic missiles to ‘terrorise’ Kyiv, UN allies say - Pyongyang reportedly sent nine million rounds of artillery and rocket launcher ammunition and at least 100 ballistic mi