Tickets to the annual Buckinghamshire and Milton Keynes Armed Forces Day are now sold out.
Taking place at the Booker Air Park for the first time, the annual celebration recognises the achievements and sacrifices of members of the armed forces.
A spokesperson from the organisers said: "we are completely sold out for our Armed Forces Day event on Saturday and we have no way of being able to let people in who don’t have pre-booked tickets as we will be in danger of breaking our crowd capacity limits.
"We are worried however that people will see that the event is free and think they can just turn up on the day and get in."
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