Kosovo
The Budapest Memorandum on Security Assurances is a political agreement signed in Budapest, Hungary on 5 December 1994, providing security assurances by its signatories relating to Ukraine's accession to the Treaty on the Non-Proliferation of Nuclear Weapons. The Memorandum was originally signed by three nuclear powers, the Russian Federation, the United States of America, and the United Kingdom. Chinaand France gave somewhat weaker individual assurances in separate documents.[1]
The memorandum included security assurances against threats or use of force against the territorial integrity or political independence of Ukraine, as well as those ofBelarus and Kazakhstan. As a result, Ukraine gave up the world's third largest nuclear weapons stockpile between 1994 and 1996,[2][3] of which Ukraine had physical if not operational control
Give us all your nukes in exchange for protection was the aggreement.