Before the War: Budapest Memorandum and Its Failure

The backstory to all Ukraine-Russia negotiations begins with the 1994 Budapest Memorandum on Security Assurances. Ukraine, having inherited the world's third-largest nuclear arsenal from the Soviet Union, agreed to give up its nuclear weapons in exchange for security assurances from the United States, United Kingdom, and Russia. These assurances included respect for Ukraine's sovereignty, territorial integrity, and existing borders, and commitments not to use economic coercion or military force against Ukraine.

Russia violated the Budapest Memorandum with the 2014 annexation of Crimea. The US and UK declined to treat the assurances as binding mutual defense commitments (explicitly not identical to NATO Article 5). Ukraine emerged from this experience with a deep institutional lesson: its security depended on its own military capacity rather than on external guarantees from great powers, and specifically that relinquishing weapons of mass destruction in exchange for paper guarantees provides insufficient protection.

This lesson has profoundly shaped Ukrainian negotiating positions in all subsequent talks: any security guarantee arrangement in a peace settlement must be substantially more robust than Budapest — closer to NATO-style mutual defense obligations than paper assurances.

Minsk I: September 2014

Following Russia's covert military intervention in eastern Ukraine (using nominally "separatist" forces with Russian military personnel, equipment, and command), a devastating Ukrainian military defeat at Ilovaisk (August 2014) forced Kyiv to the negotiating table. The Minsk Protocol (5 September 2014) and the follow-up Minsk Memorandum (September 19) established a ceasefire, prisoner exchange, withdrawal of heavy weapons, and a humanitarian corridor framework.

Minsk I collapsed almost immediately. Fighting resumed in January 2015, with Russian and proxy forces capturing Donetsk airport (a symbolically important site Ukrainian forces had defended for months) and encircling Ukrainian forces at Debaltseve. The ceasefire existed on paper while active combat continued, establishing a pattern that would characterize all subsequent ceasefire agreements negotiated with Russia.

Minsk II: February 2015

The "Package of Measures" known as Minsk II was signed 12 February 2015 in a format involving France and Germany as mediators (the "Normandy Format"), alongside Ukraine and Russia. The agreement included: a ceasefire from February 15; withdrawal of heavy weapons from the contact line; release of all prisoners; OSCE monitoring; and critically, political provisions requiring Ukraine to adopt constitutional amendments granting special status / autonomy to the Donetsk and Luhansk regions, after which Russia would restore Ukrainian control of the international border.

Minsk II's political provisions were deeply contested from the start. Ukraine argued restoration of border control must precede implementing autonomy (to prevent granting autonomy to Russian-controlled entities that would then remain as Russian-backed enclaves within Ukraine). Russia argued autonomy must be implemented first before border handover. Neither side moved. The OSCE monitoring mission documented hundreds of thousands of ceasefire violations by both sides over the subsequent seven years.

Former German Chancellor Angela Merkel controversially acknowledged in a 2022 interview that Western parties understood Minsk II primarily as "buying time" for Ukraine to strengthen its military — implicitly admitting the agreement was never considered a final political solution. This acknowledgment was seized upon by Russia as retroactive justification for its claims that Western parties acted in bad faith.

March–April 2022: The Istanbul Talks

When Russia launched its full-scale invasion on 24 February 2022, both sides maintained diplomatic channels and began direct negotiations almost immediately — first by video teleconference, then in Belarus, and culminating in face-to-face talks in Istanbul, Turkey on 29 March 2022.

According to multiple accounts — the Turkish mediators, some Ukrainian negotiators who later spoke publicly, and Russian negotiators — the Istanbul talks produced a draft framework with significant convergence:

• Ukraine would adopt permanent neutrality (no NATO membership) enshrined in its constitution
• Ukraine would accept limits on military size and weapons types (no offensive capable systems beyond certain parameters)
• International security guarantors (US, UK, France, Germany, Turkey, others) would provide binding guarantees comparable to NATO Article 5
• Russia would withdraw to positions held before 24 February 2022
• Crimea's status would be addressed through 15-year negotiations without armed force

The framework collapsed in April 2022. Multiple factors contributed: the discovery and worldwide publication of the Bucha massacre images (April 2–3) made Ukrainian public and political opinion deeply hostile to any agreement with Russia; British Prime Minister Boris Johnson visited Kyiv on April 9 and reportedly conveyed Western opposition to any settlement at that time; and Russia subsequently denied that any near-agreement had existed, making the collapse retrospectively murky.

Why No Negotiations Since 2022

After the Istanbul collapse, negotiations effectively ceased for several years. Multiple factors explain this:

• Ukrainian legal prohibition: In 2022, Ukraine passed legislation and constitutional amendments prohibiting negotiations with Putin specifically. This was an expression of political will that made formal talks legally impossible without further legislative action.
• Western support for Ukraine position: The G7 and key NATO allies committed to supporting Ukraine "for as long as it takes" — implicitly rejecting pressure for forced negotiations.
• Russian annexation (September 2022): Russia's formal annexation of Donetsk, Luhansk, Zaporizhzhia, and Kherson oblasts (while not controlling all of them) created domestic Russian political impediments to withdrawing from annexed territory — it would require domestic narrative reversal.
• Military situation mid-war: Both sides believed continued fighting offered better prospects than available negotiated terms through 2022–2023.

Post-2024: Renewed Pressure Under Trump Administration

The return of Donald Trump to the US presidency in January 2025 reintroduced ceasefire pressure from the US side. Trump and his envoys expressed desire for a rapid end to the war and held contacts with both Russian and Ukrainian sides. The Trump position — broadly interpreted as accepting a frozen conflict along roughly current lines — was not accepted by Ukraine as a starting point, given that Russia held portions of all four annexed oblasts plus Crimea.

Peace discussions in the 2025–2026 period involved multiple tracks: US-Russia bilateral discussions; the Saudi Arabia and other Gulf state mediation initiatives; and European diplomatic activity. Key unresolved issues remain: territorial starting point for negotiations (current lines vs. internationally recognized borders vs. some hybrid); security guarantees for remaining Ukrainian territory; reparations and accountability; and Russia's continued occupation of Crimea.

The Core Incompatibility: Why Agreement Is Difficult

Every peace negotiation framework since 2014 has struggled with the same fundamental incompatibility:

• Ukraine insists on territorial integrity (internationally recognized 1991 borders) as the basis for any legitimate settlement
• Russia insists on formal recognition of its territorial gains (Crimea at minimum, ideally all four annexed oblasts) and Ukrainian neutrality as preconditions
• These positions are structurally incompatible — any agreement acceptable to both sides requires either Ukraine ceding internationally recognized territory or Russia accepting non-recognition of gains it has made permanent domestic policy

Intermediate arrangements (frozen conflict, interim demarcation lines, phased process) are possible but historically become permanent — as Korea, Cyprus, and the original line of contact in Donbas from 2015 all demonstrate. Ukraine's deep awareness of this dynamic makes acceptance of any frozen conflict without ironclad security guarantees and realistic reunification pathway extremely difficult politically.