Number 101 Squadron are celebrating their centenary at RAF Brize Norton in Oxfordshire.
Her Royal Highness, The Princess Royal, is attending the Centenary celebrations. The unit was formed in South farnborough on the 12th July 1917. Two weeks later its air and ground crews were deployed to the Western Front during World War One.
In more recent times, No. 101 Squadron's crews have been deployed in the Gulf and the Falklands. Its teams have also supported both the AAR (air-to-air refuelling) and AT (Air Transport) roles in a number of Armed Forces deployments all over the world.