Further talks between the Azerbaijani and Armenian presidents, Ilham Aliyev and Robert Kocharyan, were held in September 2004 in Astana, Kazakhstan, on the sidelines of the Commonwealth of Independent States (CIS) summit. Reportedly, one of the suggestions put forward was the withdrawal of the occupying forces from the Azeri territories adjacent to Artsakh and then holding referendums (plebiscites) in Artsakh and Azerbaijan proper regarding the future status of the region. On 10 and 11 February 2006, Kocharyan and Aliyev met in Rambouillet, France, to discuss the fundamental principles of a settlement to the conflict. Contrary to the initial optimism, the Rambouillet talks did not produce any agreement, with key issues such as the status of Artsakh and whether Armenian troops would withdraw from Kalbajar still being contentious.