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Chief of the Air Staff and Air Chief Marshal Sir Stephen Hillier KCB CBE DFC met with Japan Air Self-Defense Force (JASDF) Chief of Staff General Yoshiyuki Sugiyama on 22 October, 2016, at Misawa Air Base, Aomori Prefecture, during the Guardian North 16 exercise involving the Royal Air Force and JASDF. PHOTO: ©MoD Crown Copyright 2016