A deal to end the war between Ukraine and Russia “is still very, very far away,” Ukrainian President Volodymyr Zelenskyy said, adding that he believed Ukraine's long-term partnership with the U.S. was strong enough that American support would continue despite recent fraught relations with U.

How long can Ukraine last against Russia without US help? Can Europe step up to fill the gap? And how close is Russia to getting what it wants? We explain.

Putin, who sent troops into Ukraine on Feb. 24, 2022, has declared his openness for peace but demanded that Ukraine abandon its bid to join NATO and withdraw its troops from the four regions that Russia illegally annexed in 2022 but never fully captured.