After Donald Trump accused Volodymyr Zelensky of 'gambling with WW3', experts share how likely it is that the war on Ukraine will escalate to global conflict, and what that will look like

Europe is hopelessly out-gunned by Russia when it comes to nuclear missiles, a leading academic has warned - with the continent needing 1,000 more warheads to deter Vladimir Putin. German political scientist Maximilian Terhalle warned European leaders need to invest in more than 1,000 nukes to match more than 1,500 currently held by the Kremlin.

Russia is getting more aggressive, and they might have to deal with it alone. The U.S. has made it painfully clear where it stands. When it joined Russia and North Korea to block a UN resolution condemning Putin’s invasion of Ukraine,

Even as they have rallied to Volodymyr Zelenskiy's side after his Oval Office clash with Donald Trump, European leaders' approach to the war in Ukraine and the continent's security remains highly dependent on the U.

Even as they have rallied to Volodymyr Zelenskiy's side after his Oval Office clash with Donald Trump, European leaders' approach to the war in Ukraine and the continent's security remains highly dependent on the U.

STORY: "We are at a crossroads in history today. This is not a moment for more talk."British Prime Minister Keir Starmer did not mince words on Sunday about the stakes facing Ukraine and Europe at a summit of world leaders in London.