As the Ukraine war drags into its fourth year, optimism and uncertainty surround the possibility of diplomatic breakthroughs under the incoming Trump administration. Ukrainian officials and NATO allies, while outwardly hopeful, face hard questions about the sustainability of support and the risks of a fractured alliance as new leadership takes charge in Washington.

Trump Administration’s Diplomatic Approach

President-elect Donald Trump’s team has hinted at a preference for a negotiated settlement to the conflict. Keith Kellogg, Trump’s Ukraine envoy, has proposed a peace plan involving a ceasefire, the establishment of a demilitarized zone, and conditional military aid tied to Ukraine’s participation in negotiations. However, the plan’s reliance on Russia’s willingness to adhere to terms devised by the United States raises doubts, particularly given Moscow’s history of undermining ceasefires and advancing military goals under the guise of peace.

On Sunday, Trump’s incoming national security adviser, Rep. Mike Waltz, emphasized the need for a diplomatic resolution, a statement swiftly echoed by Russian Foreign Minister Sergey Lavrov as evidence of the U.S. acknowledging “the reality on the ground.”

NATO’s Fragile Unity

While NATO allies remain publicly committed to Ukraine, internal divisions are beginning to surface. Some European defense officials are exploring the feasibility of deploying NATO troops to monitor a potential demilitarized zone. Ukrainian President Volodymyr Zelensky has reportedly discussed the possibility of “partner contingents” with French President Emmanuel Macron, fueling speculation about the formation of a NATO peacekeeping force.

However, Eastern European NATO members remain wary of any ceasefire deal that might embolden Moscow. Estonia’s Kaja Kallas, now serving as the EU’s High Representative for Foreign Affairs, warned that a flawed peace deal could lead to further aggression.

“Without credible security guarantees, any ceasefire agreement is likely to fail,” Kallas told CNN. “Russia will simply rearm and re-attack. We must learn from the past and ensure any future agreement is sustainable.”

Moscow’s Record of Deception

Russia’s track record of exploiting ceasefires raises alarms about the viability of any new agreements. From its 2014 annexation of Crimea to territorial advances during the Minsk peace talks in 2015, Moscow has consistently pursued military gains while ostensibly engaging in diplomacy.

As the conflict grinds on, Western officials estimate that Russia has suffered nearly 700,000 casualties, with daily losses of up to 1,500. Despite these staggering numbers, the Kremlin frames the war as an existential battle against NATO, complicating the prospects for meaningful concessions at the negotiating table.

Risks of NATO Involvement

While Kyiv advocates “peace through strength,” questions remain about the extent to which NATO is willing to intervene directly. The potential deployment of NATO troops in a demilitarized zone raises concerns about what level of provocation would warrant retaliation against a nuclear-armed adversary like Russia.

Trump’s historical reluctance to confront Moscow and his skepticism of NATO further cloud the alliance’s future cohesion. Analysts warn that any lapse in unified support for Ukraine could embolden the Kremlin, allowing Russian President Vladimir Putin to exploit the slow pace of diplomacy and incremental territorial gains.

As NATO’s backing for Ukraine shows signs of strain, the coming months could determine whether Kyiv’s allies can maintain their resolve or whether the war will slide into a drawn-out stalemate, with devastating consequences for European security.