 The United States was a critical player in assisting Kazakhstan to get rid of its strategic nuclear weapons stockpile and dismantle its nuclear weapons infrastructure between 1991 and 1996 through the provision of Nunn-Lugar Comprehensive Threat Reduction (CTR) assistance.In the time period between 1992 and 2008, cumulative CTR assistance to Kazakhstan has culminated to $341 million.At the "2012 Seoul Nuclear Security Summit" in March 2012, Presidents Obama and Nazarbayev reaffirmed bilateral cooperation in the areas of nuclear nonproliferation.