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Operational definition, Operational auditing, Operational semantics, Operational level of war, Operational risk, The Operational Art of War, Operational system, Operational conversion unit, Standardized approach (operational risk), Operational View, Journal of the Operational Research Society, Operational Group (Poland), Operational Requirement, Operational acceptance testing, Operational amplifier, Operational risk management, Operational Service Medal, Operational excellence, Operational Test and Evaluation Force, The Operational Art of War Vol. 1: 1939–1955, Director, Operational Test and Evaluation, Operational historian, Operational database, Operational Land Forces Command, Operational artificial intelligence, Common operational picture, Australian Operational Service Medal, No. 237 Operational Conversion Unit RAF, Operational Service Medal for Afghanistan, Operational manoeuvre group, Operational Research Society, Geostationary Operational Environmental Satellite, Operational Command South, Operational due diligence, No. 226 Operational Conversion Unit RAF, Operational Land Imager, Operational bill, Operational data store, Common Operational Datasets, Operational Mentoring and Liaison Team, Independent Operational Group Narew, 25th Operational Weather Squadron, Operationalization, The Journal of Operational Risk, The Operational Art of War II: Modern Battles 1956–2000, 9th Operational Weather Squadron, Operational Medical Orderly, No. 240 Operational Conversion Unit RAF, Operational modal analysis, Operational plan, Operational technology, Local operational picture, Tavria operational-strategic group, 11th Operational Weather Squadron, Operational transconductance amplifier, Commander Fleet Operational Standards and Training, 26th Operational Weather Squadron, Operational Command North, 15th Operational Weather Squadron, Operational Service Medal for Sierra Leone, 21st Operational Weather Squadron, Operational loads monitoring, Operational-level agreement, 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