Vladimir Putin "will keep driving the war forward wider and deeper" if he is not stopped, Ukraine's President Zelensky has warned, BBC reported. 

Speaking at the UN's General Assembly in New York, Zelensky said more countries would be met with Russian aggression unless allies displayed a united front and ramped up support.

He said all nations were threatened by a global arms race, as military technology advances, adding that "weapons decide who survives" and calling for global rules on AI.

His comments come after US President Donald Trump shifted his position on the Russia-Ukraine war, saying for the first time that Ukraine could win back all of its land, according to BBC.