Prime Minister Justin Trudeau says Moscow can't be trusted in any agreement to end its invasion of Ukraine, as European leaders craft plans to rely less on Washington and protect the continent from more incursions by Russian President Vladimir Putin.

More than a dozen European leaders gather in London Sunday for crisis talks, looking to boost security cooperation and support for Ukraine after an astonishing blowout between Kyiv and Washington.Ukraine's allies have been underscoring their steadfast commitment to counter growing concerns that US President Donald Trump is about to sell Kyiv short in negotiations with Russia.