 Kharkiv Pact

The Agreement between Ukraine and Russia on the Black Sea Fleet in Ukraine, widely referred to as the Kharkiv Pact () or Kharkiv Accords (), 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 Dimitry Medvedev and ratified by the parliaments of the two countries on 27 April 2010, aroused much controversy in Ukraine.