A delivery driver from Luton has been convicted of plotting to kill a US airman outside a base in East Anglia.
Junead Khan, a supporter of so-called Islamic State (IS), was found guilty of preparing terrorist acts.
Khan had driven past RAF Lakenheath and other bases on his delivery route, and had discussed staging a car crash and attacking a soldier with a knife.
He was also convicted of preparing to join IS in Syria. His uncle Shazib Khan was also convicted of the same charge.
Police said Junead Khan planned to stage a car crash outside an airbase and then use a knife to attack a member of the US military.
He had also done extensive research on how to make a bomb, said Commander Dean Haydon of the Metropolitan Police's Counter Terrorism Command.
The verdicts came after a six-week trial at Kingston Crown Court.
