Yes, Role 3 was a joint medical, multinational facility. Each nation would work as part of a team, and we would take our turn on the rotation.
Obviously, if we weren't on one night but heard that a Canadian Forces member had been injured, we would always come in, because we obviously felt a special attachment. If a Canadian surgeon were on, we would notify the U.S. surgeon as a courtesy if a U.S. member were injured, and the U.S. surgeon would always come in.