Cuba's foreign policy has been fluid through history depending on world events and other variables, including relations with the United States. Without massive Soviet subsidies and its primary trading partner, Cuba was comparatively isolated in the 1990s after the fall of the USSR and the end of the Cold War, but has since entered bilateral co-operation with several South American countries, most notably Venezuela and Bolivia. The United States of America used to stick to a policy of isolating Cuba until December 2014, when Barack Obama announced a new policy of diplomatic and economic engagement. The European Union accuses Cuba of "continuing flagrant violation of human rights and fundamental freedoms". Cuba has developed a growing relationship with the People's Republic of China and Russ