RAF Waddington, Lincolnshire, UK.
Home to 34AEW and the majority of the UK's ISTAR fleet - 8 Sqn (Sentry), 13 Sqn (MQ-9 Reaper), 14 Sqn (Shadow) & 51 Sqn (RC-135W); also hosts 54 Sqn (ISTAR OCU) & 56 Sqn (ISTAR OEU).