Canada and its allies use many terms to describe how military operations are conducted. These terms are not interchangeable. They fall along a spectrum of complexity, integration, domains and the number of entities involved. At one end are operations confined to a single service — the army, navy or air force — and a single domain: land, sea, air, cyber or space. At the other end lies something far more ambitious: fully integrated, long-term efforts that bring together not just the military but g