Soviet Union | European Union | Union Army | ATP International Series | rugby union | Union | International Monetary Fund | Physics | International Red Cross and Red Crescent Movement | ATP International Series Gold | International Space Station | Amnesty International | International Olympic Committee | physics | BirdLife International | International Finance Corporation | International Organization for Standardization | International Telecommunication Union | International Criminal Court | trade union | One Day International | International Nonproprietary Name | International Labour Organization | International Civil Aviation Organization | International Boxing Federation | Union (American Civil War) | Toronto International Film Festival | International Atomic Energy Agency | Union Pacific Railroad | International Maritime Organization |
In 2004 Cohen received the triannual Boltzmann Medal from the Committee on Thermodynamics and Statistical Mechanics of the International Union of Pure and Applied Physics, its highest award for contributions to statistical mechanics.