The bodies of six service personnel based in Cornwall, or from the county, have been flown back to the UK to RAF Brize Norton.
Eleven bodies were brought back to Brize Norton
Five of the men were on board two Sea King helicopters from RNAS Culdrose, near Helston, which crashed on 22 March - the sixth was a soldier killed in Al Zubayr.
The bodies were among 11 brought by plane to the Oxfordshire base onboard a C-17 cargo aircraft.
Relatives, service commanders, armed forces minister Adam Ingram and the Duke of Gloucester were present.
Lieutenants Anthony King, 35, Philip West, 32, Philip Green, 31, James Williams, 28, and Andrew Wilson, 36, who was from Exeter, were part of 849 Squadron serving in the Gulf from HMS Ark Royal.
Lieutenant Andy Wilson was based in Cornwall
They were travelling in two Sea King helicopters which collided over the Persian Gulf.
Also arriving at the airbase was the body of Sergeant Steven Roberts, 33, originally from Wadebridge.
He had moved to Bradford and was part of the 2nd Royal Tank Regiment.
He was killed on 24 March while serving in Al Zubayr.