The repatriation will take place today of three British servicemen killed in Afghanistan, including two shot dead by a rogue Afghan soldier.
Sergeant Luke Taylor, 33, of the Royal Marines, and Lance Corporal Michael Foley, 25, of the Adjutant General's Corps, were killed at the entrance to the UK headquarters in Helmand Province on Monday.
Captain Rupert Bowers, 24, of 2nd Battalion The Mercian Regiment, was killed just five days before in a roadside bomb blast on March 21.
Their bodies will be flown into RAF Brize Norton in Oxfordshire, where a private ceremony for the men's families will be held before the cortege leaves on its way to the John Radcliffe Hospital in Oxford.
The cortege will be escorted at walking pace past the memorial garden in Carterton where the Union Flag will be hung at half-mast and members of the public are expected to gather.