A "robbery operation" refers to a planned and coordinated act of stealing from a person, place, or establishment, usually involving multiple individuals working together. Full definition
The suspects were said to have shot and killed their victims during various bank robbery operations in the different parts of the state. (punchng.com)
For instance, let's look at what happened in Osun state where the men of Nigeria Police reportedly foiled an armed robbery operation at Ikirun with the Armour Personnel Carrier provided by the State Government to the police. (nigeriapoliticsonline.com)
Vin Diesel (Pitch Black, Boiler Room) plays Dominic Toretto, the leader of a gang of street racers who also have an undercover armed robbery operation in their spare time. (qwipster.net)