Zelenskiy has insisted the pullback of troops and an election plan are necessary for calling a summit with leaders of Russia, France and Germany, but he has faced stiff resistance from far-right and ultranationalist groups who call his moves a capitulation to Russia.
Envoys from Russia, Ukraine and Russia-backed separatists failed to come to terms of the troops' pullback at a Tuesday's meeting in the Belarusian capital, Minsk. Earlier this month, they have already agreed to withdraw forces in two front-line areas, but the pullback hasn't occurred because of shelling from both sides and Ukrainian hardliners' pledge to block the disengagement.
France and Germany brokered a 2015 peace agreement that envisaged a broad autonomy for the separatist regions in eastern Ukraine and an amnesty for the rebels — the provisions that were never implemented because it was resented by many In Ukraine.
On Monday, thousands of ultra-right and nationalist activists brandishing red flares and shouting "glory to Ukraine" marched across the Ukrainian capital to protest Zelenskiy's leadership and his attempts to implement the 2015 deal.