Interoperability : RAND Corporation : 9780833029126 : 0833029126 : 19 Dec 2000 : The United States is incrcasingly participating in coalition military operations. Coalition support may be required for successful military operations and in most such operations the United States desires to share the burden. U.S. allies recognize the increased security that coalition operations can bring. Because interoperability is a key element in coalitions, RAND undertook research to help the Air Force identify potential interoperability problems that may arise in coalition air operations and to suggest nonmateriel and technology-based solutions. The research focus is on command, control, communications, intelligence, surveillance, and reconnaissance (C3ISR) systems in out-of-NATO-area operations. The authors' review of recent coalition air operations found that interoperability problems arose because of differences in doctrine, incompatible communications, different planning and execution systems, an