Demolition work has started at RAF Lakenheath to prepare the Suffolk airbase for the arrival of two squadrons of US Air Force F-35 fighter jets.
An F-35 fighter jet declared an emergency while flying over Norfolk skies on Thursday evening.
The live firing of weapons at a military shooting range in Norfolk has been suspended.
A veteran who was homeless for six months has said the Ministry of Defence must do more to help departing servicemen after it emerged empty armed forces-owned homes in the region could house more than half of Norfolk's "hidden homeless".
The Thetford (O)Ranges sign on the A11 is not the only one in Norfolk to be targeted by pranksters.
It is a battle that has raged on for years along the A11 in Norfolk.