Operation Abacus was a Canadian military operation formed in 1999 in response to anticipated disruption due to the year 2000 problem. Operation Abacus had troops standing by to restore order and vital services if the year 2000 and the turn of the millennium caused disruption to computer systems, and to conduct patrols to for looters and to prevent or stop rioting.
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Operation Abacus Wikipedia(Text) CC BY-SA