The Royal Canadian Air Force (RCAF; French: Aviation royale canadienne, ARC) is the air and space force of Canada. Its role is to "provide the Canadian Forces with relevant, responsive and effective airpower". The RCAF is one of three environmental commands within the unified Canadian Armed Forces. As of 2020, the Royal Canadian Air Force consists of 12,074 Regular Force and 1,969 Primary Reserve personnel, supported by 1,518 civilians, and operates 258 manned aircraft and nine unmanned aerial vehicles. Lieutenant-General Al Meinzinger is the current commander of the Royal Canadian Air Force and chief of the Air Force Staff.The Royal Canadian Air Force is responsible for all aircraft operations of the Canadian Forces, enforcing the security of Canada's airspace and providing aircraft to support the missions of the Royal Canadian Navy and the Canadian Army. The RCAF is a partner with the United States Air Force in protecting continental airspace under the North American Aerospace Defense Command (NORAD). The RCAF also provides all primary air resources to and is responsible for the National Search and Rescue Program.

The RCAF traces its history to the Canadian Air Force, which was formed in 1920. The Canadian Air Force was granted royal sanction in 1924 by King George V to form the Royal Canadian Air Force. In 1968, the RCAF was amalgamated with the Royal Canadian Navy and the Canadian Army, as part of the unification of the Canadian Forces. Air units were split between several different commands: Air Defence Command (ADC; interceptors), Air Transport Command (ATC; airlift, search and rescue), Mobile Command (tactical fighters, helicopters), Maritime Command (anti-submarine warfare, maritime patrol), as well as Training Command (TC).

In 1975, some commands (ADC, ATC, TC) were dissolved, and all air units were placed under a new environmental command called simply Air Command (AIRCOM; French: Commandement arien). Air Command reverted to its historic name of "Royal Canadian Air Force" in August 2011.The Royal Canadian Air Force has served in the Second World War, the Korean War, the Persian Gulf War, as well as several United Nations peacekeeping missions and NATO operations. As a NATO member, the force maintained a presence in Europe during the second half of the 20th century.

The Royal Canadian Navy (RCN; French: Marine royale canadienne) is the naval force of Canada. The RCN is one of three environmental commands within the Canadian Armed Forces. As of 2021, the RCN operates 12 frigates, four attack submarines, 12 coastal defence vessels, eight patrol class training vessels, one offshore patrol vessels, and several auxiliary vessels. The RCN consists of 8,570 Regular Force and 4,111 Primary Reserve sailors, supported by 3,800 civilians. Vice-Admiral Craig Baines is the current commander of the Royal Canadian Navy and chief of the Naval Staff.Founded in 1910 as the Naval Service of Canada (French: Service naval du Canada) and given royal sanction on 29 August 1911, the RCN was amalgamated with the Royal Canadian Air Force and the Canadian Army to form the unified Canadian Armed Forces in 1968, after which it was known as Maritime Command (French: Commandement maritime) until 2011.

In 2011, its historical title of "Royal Canadian Navy" was restored. Throughout its history, the RCN has served in the First and Second World Wars, the Korean War, the Persian Gulf War, Afghanistan, and numerous United Nations peacekeeping missions and NATO operations.