The event traditionally celebrates the work of navy, army, and airforce personnel.
From the guardian.co.uk
We've got aeroplanes that are ready to do dogfights with the Soviet Union airforce.
From the guardian.co.uk
They are trained to take action against the enemy's airforce related targets.
From the en.wikipedia.org
I believe that the airforce is restricting astronomers for another reason.
From the newscientist.com
Colombia's airforce chief, General Manuel Sandoval, took responsibility and resigned.
From the economist.com
The capsules, dangling from parachutes, were grabbed in mid-air by an airforce plane.
From the newscientist.com
Shearer is wearing an airforce-blue pinstriped suit from Working Style and a Boss tie.
From the nzherald.co.nz
They need to use every resource from army helicopters to navy ships and airforce planes.
From the latimes.com
The base is the home of the 36th fighter wing of the Italian airforce.
From the telegraph.co.uk
More examples
Air force: the airborne branch of a country's armed forces
An air force, also known in some countries as an air army or air corps, is in the broadest sense, the national military organization that primarily conducts aerial warfare. ...