In order to ensure surprise during the landings, UN forces staged an elaborate deception operation to draw North Korean attention away from Inchon by making it appear that the landing would take place to the south at Kunsan. On 5 September 1950, aircraft of the USAF's Far East Air Forces began attacks on roads and bridges to isolate Kunsan, typical of the kind of raids expected prior to an invasion there. A naval bombardment of Kunsan followed on 6 September, and on 11 September USAF B-29 Superfortress bombers joined the aerial campaign, bombing military installations in the area.