The controversial Kharkiv Pact (Russian Ukrainian Naval Base for Gas Treaty) is signed in Kharkiv

The Agreement between Ukraine and Russia on the Black Sea Fleet in Ukraine, widely referred to as the Kharkiv Pact or Kharkov 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.