KYIV—Ukrainian President Volodymyr Zelensky said he would be willing to pull troops out of the eastern region of Donetsk and create a demilitarized free economic zone as part of a potential peace deal, provided Russia took similar steps to withdraw from areas it controls.

The United States and Ukraine have reached a consensus on several critical issues to end the nearly four-year conflict with Russia.

Russia has ordered a winter troop surge to break the stalemate in Ukraine, but Ukrainian drone attacks on logistics and resupply channels will undermine this offensive.

The blueprint covers a broad range of issues, including territory, security guarantees and postwar reconstruction. But Russia has indicated little willingness to end the war.

A majority of Russians expect the war in Ukraine to end in 2026, state pollster VTsIOM said on Wednesday, in a sign that the Kremlin could be testing public reaction to a possible peace settlement as diplomatic efforts to end the conflict intensify.

Russia fired more than 650 drones and three dozen missiles at Ukraine in a major pre-Christmas attack, killing at least three people including a child.

Ukraine said a resistance agent was able to sneak into a Russian hangar and destroy two Russian fighter jets.

Russian forces launched a missile and drone attack across Ukraine, killing civilians and hitting energy targets as negotiators pressed ahead with talks to end the nearly four-year war.

The offer was the closest Mr. Zelensky has come to addressing the thorny territorial disputes in Donetsk that have repeatedly derailed peace talks.