T-shirt RAF Royal Air Force - Black or Green

T-shirt RAF from 100% cotton!
The Royal Air Force (RAF) is the United Kingdom's air force, 
the oldest independent air force in the world.
Formed on 1 April 1918, the RAF has taken a significant role in British military history ever since, 
playing a large part in World War II and in more recent conflicts.

The air forces of the United Kingdom – the Royal Navy's Fleet Air Arm, the Army's Army Air Corps and the Royal Air Force use a roundel, a circular identification mark, painted on aircraft to identify them to other aircraft and ground forces. In one form or another, it has been used on British military aircraft from 1915 to the present.