Ukraine’s Nuclear DisarmamentIn December 1994, Ukraine gave up the third largest nuclear arsenal in the world and signed the Non Proliferation Treaty, having received assurances that its sovereignty would be respected and secured by Russia, the United States, and the United Kingdom. Based on original and heretofore unavailable documents, Yuri Kostenko's account of the negotiations between Ukraine, Russia, and the US reveals for the first time the internal debates of the Ukrainian