Ukraine's leader admits mobilisation is a sensitive and costly issue as the war with Russia nears two-year mark.

Ukraine’s military wants to mobilise up to 500,000 extra people, President Volodymyr Zelensky has revealed, as the war with Russia nears a two-year mark.

At a news conference in Kyiv, he said his commanders were seeking “450,000-500,000 individuals”, admitting this was a “sensitive” and costly issue.

He said he needed more details before backing the move, hinting that 500,000 soldiers were already on the front.

His comments come in the wake of aid setbacks from the US and the EU.