KYIV, Ukraine (AP) — Ukrainian President Volodymyr Zelenskyy announced that peace proposals currently under negotiation with U.S. officials aim to resolve the nearly four-year conflict with Russia. These proposals could be finalized in the coming days, at which point American representatives plan to present them to the Kremlin. Additional discussions might take place in the United States next weekend.

Speaking to journalists late Monday, Zelenskyy described the draft peace plan, discussed with the U.S. during recent talks in Berlin, as “very workable.” However, he noted that critical issues remain, particularly the fate of Ukrainian territories currently occupied by Russian forces.

Efforts led by the U.S. to broker peace seem to be gaining traction. Nevertheless, Russian President Vladimir Putin may resist certain elements agreed upon by officials from Washington, Kyiv, and Western European countries, especially those concerning postwar security assurances for Ukraine.

On Tuesday, Kremlin spokesman Dmitry Peskov reiterated Russia’s desire for a comprehensive peace agreement rather than a temporary ceasefire.

Peskov stated, “If Ukraine is looking for short-term, unsustainable solutions, we are unlikely to participate.”

“We want peace — we don’t want a truce that would give Ukraine a respite and prepare for the continuation of the war,” he told reporters. “We want to stop this war, achieve our goals, secure our interests, and guarantee peace in Europe for the future.”

American officials on Monday said that there’s consensus from Ukraine and Europe on about 90% of the U.S.-authored peace plan. U.S. President Donald Trump said: “I think we’re closer now than we have been, ever” to a peace settlement.

Plenty of potential pitfalls remain, however.

Zelenskyy reiterated that Kyiv rules out recognizing Moscow’s control over any part of the Donbas, an economically important region in eastern Ukraine made up of Luhansk and Donetsk. Russia’s army doesn’t fully control either.

“The Americans are trying to find a compromise,” Zelenskyy said, before visiting the Netherlands on Tuesday. “They are proposing a ‘free economic zone’ (in the Donbas). And I want to stress once again: a ‘free economic zone’ does not mean under the control of the Russian Federation.”

The land issue remains one of the most difficult obstacles to a comprehensive agreement.

Putin wants all the areas in four key regions that his forces have seized, as well as the Crimean Peninsula, which Moscow illegally annexed in 2014, to be recognized as Russian territory.

Zelenskyy warned that if Putin rejects diplomatic efforts, Ukraine expects increased Western pressure on Moscow, including tougher sanctions and additional military support for defense. Kyiv would seek enhanced air defense systems and long-range weapons if diplomacy collapses, he said.

Ukraine and the U.S. are preparing up to five documents related to the peace framework, several of them focused on security, Zelenskyy said.

He was upbeat about the progress in the Berlin talks.

“Overall, there was a demonstration of unity,” Zelenskyy said. “It was truly positive in the sense that it reflected the unity of the U.S., Europe, and Ukraine.”