The West is at a “crossroads in history,” Britain’s Prime Minister Keir Starmer told European leaders at a pivotal summit in London on Sunday, as the continent sought to wrestle control of negotiations over the Russia-Ukraine war away from the US and present a united front amid a meltdown in relations between Kyiv and Washington.

A summit of European leaders to discuss Ukraine's defense has been overshadowed by the diplomatic row at the White House

But what are the hurdles – and how easily can they be overcome? Can Europe put together a sufficient deterrent force? First, can Europe's depleted armies and half-empty arsenals

Following the public clash between Trump and Zelensky, the U.K. and France are trying to broker a compromise solution to end the war.

European leaders pledge to assemble a “coalition of the willing” to develop a plan for ending Ukraine’s war with Russia, which they hope could win the backing of a skeptical President Trump.