adj. designating all three branches of the Canadian Forces--navy, army, and air force.
- 1963  Royal Canadian Navy cadets at the tri-service college [R MC] will be . . . seeing Hawaii.
- 1965  . . . the motto . . . exemplifies the [Postal] Corps' mission, a tri-service function.
- 1966  Traditional army commands and area headquarters were disbanded and replaced by 12 tri-service district headquarters.