The Air Force instituted the Allied Officer Preparatory Phase Course to help international officers adjust to Air University programs in 1954. Allied officers have been attending AU since 1946. Several name changes later, it was given its current name of International Officer School in 1985. Since 1954, more than 11,000 international military students from 143 countries have graduated from IOS preparatory courses. Annually, IOS supports about 250 students and their families while attending AU programs, such as Air Command and Staff College (pictured). (U.S. Air Force photo by Senior Airman Rhonda Smith)
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