Kharkiv Pact
2010 agreement between Ukraine and Russia on the status of the Black Sea Fleet in Crimea
The Agreement between Ukraine and Russia on the Black Sea Fleet in Ukraine, widely referred to as the Kharkiv Pact (Ukrainian: Харківський пакт) or Kharkov Accords (Russian: Харьковские соглашения), was a treaty between Ukraine and Russia whereby the Russian lease on naval facilities in Crimea was extended beyond 2017 until 2042, with an additional five-year renewal option in exchange for a multiyear discounted contract to provide Ukraine with Russian natural gas.
The agreement, signed on 21 April 2010 in Kharkiv, Ukraine, by Ukrainian president Viktor Yanukovych and Russian president Dmitry Medvedev and ratified by the parliaments of the two countries on 27 April 2010, aroused much controversy in Ukraine. The treaty was effectively a continuation of the lease provisions that were part of the 1997 Black Sea Fleet Partition Treaty between the two states. Shortly after the annexation of Crimea by the Russian Federation in March 2014, Russia unilaterally terminated the treaty on 31 March 2014.
History
In 1997, Russia and Ukraine agreed to end the dispute over the former Soviet Black Sea Fleet by signing the Partition Treaty, establishing two independent national fleets and dividing armaments and bases between them. Ukraine also agreed to lease major parts of its new bases in Sevastopol to the Russian Black Sea Fleet until 2017. During the presidency of Victor Yushchenko (January 2005 – February 2010) the Ukrainian government declared that the lease would not be extended and that the fleet would have to leave Sevastopol by 2017.
Amid several Russia–Ukraine gas disputes, including a halt of natural gas supplies to European countries, the price that Ukraine had to pay for Russian natural gas was raised in 2006 and in 2009.
Negotiation
The Prime Minister of Ukraine, Mykola Azarov, and the Energy Minister, Yuriy Boyko, visited Moscow in late March 2010 to negotiate lower gas prices; neither clearly explained what Ukraine was prepared to offer in return. Following these talks Russian prime minister Vladimir Putin stated that Russia was prepared to discuss the revision of the price for natural gas it sells to Ukraine.
The public source identifies “Kharkiv Pact” as 2010 agreement between Ukraine and Russia on the status of the Black Sea Fleet in Crimea. This brief keeps that definition visible, then builds a research path around Kharkiv, Pact and agreement.
Why this record matters
A short description can identify a subject without explaining its stakes. For “Kharkiv Pact”, the useful work is to connect “2010 agreement between Ukraine and Russia on the status of the Black Sea Fleet in Crimea” to the records capable of establishing context and consequence.
Maps, plans, fabric surveys and administrative records can establish how the site’s name, extent and function changed over time. The source revision retrieved here is dated Sep 23, 2026. The linked authority identifier is Q2077856. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2017, 2042, 2010 and 1997.
Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Kharkiv Pact”, its source revision and the description used here.
- Expand the search: follow Kharkiv Pact primary sources, Kharkiv Pact archive and Kharkiv research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Kharkiv Pact”?
- What physical evidence or contemporary plan supports the description?
- Which earlier names or jurisdictions may reveal additional records?
Search terms from this dossier
This entry incorporates text from “Kharkiv Pact” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.