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Operational definition, Operational auditing, Operational semantics, Operational level of war, The Operational Art of War, Operational system, Operational risk, Operational View, Standardized approach (operational risk), Operational Requirement, Operational conversion unit, Operational Group (Poland), Operational acceptance testing, Journal of the Operational Research Society, Operational Service Medal, Operational risk management, Operational amplifier, The Operational Art of War Vol. 1: 1939–1955, Operational excellence, Operational Test and Evaluation Force, Operational Research Society, Director, Operational Test and Evaluation, Operational historian, Operational database, Operational Land Forces Command, Operational manoeuvre group, Operational artificial intelligence, Operational Service Medal for Afghanistan, No. 237 Operational Conversion Unit RAF, Australian Operational Service Medal, Common operational picture, Operational due diligence, Operational data store, Operational Land Imager, Geostationary Operational Environmental Satellite, No. 226 Operational Conversion Unit RAF, Operational Command South, Operational bill, Operational Mentoring and Liaison Team, Common Operational Datasets, Operationalization, Independent Operational Group Narew, Operational plan, 25th Operational Weather Squadron, The Operational Art of War II: Modern Battles 1956–2000, The Journal of Operational Risk, Operational modal analysis, No. 240 Operational Conversion Unit RAF, 9th Operational Weather Squadron, Operational Medical Orderly, Local operational picture, 11th Operational Weather Squadron, Operational transconductance amplifier, Operational technology, Commander Fleet Operational Standards and Training, 26th Operational Weather Squadron, 21st Operational Weather Squadron, Operational-level agreement, Operational Service Medal for Sierra Leone, Operational Command North, No. 2 (Coastal) Operational Training Unit RAF, 15th Operational Weather Squadron, Operational stress injury, Operational loads monitoring, No. 228 Operational Conversion Unit RAF, Operational Silo Test Facility, Operational design domain, Naval Center for Combat and Operational Stress Control, No. 236 Operational Conversion Unit RAF, Strike Attack Operational Evaluation Unit, Bayesian operational modal analysis, New Zealand Operational Service Medal, 17th Operational Weather Squadron, Operational Service Medal for the Democratic Republic of Congo, No. 2 Operational Conversion Unit RAAF, Ground based operational surveillance system, Operational efficiency, NATO Maritime Interdiction Operational Training Centre, Operational responsiveness, Aerospace Operational Support Group RAAF, Current-feedback operational amplifier, Joint Operational Support Airlift Center, Operational transformation, No. 231 Operational Conversion Unit RAF, No. 5 Operational Training Unit RAAF, Marine Operational Training Group 81, Operational Group Ermakov, Air Force Operational Test and Evaluation Center, 403 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Responsive Space Office, International Operational Service Medal, Association of European Operational Research Societies, Polish Operational and Systems Research Society, Operational amplifier applications, Hungary-United States Operational Mentor and Liaison Team, Overall Operational Command