ɪn ˈɪŋɡlənd, ðə mˈɪʃən ʌvðə wˈʌnhˈʌndɹɪd twˈɛnti θɹˈiː dˈiː wʌz tə pɹəvˈaɪd fˈaɪɾɚɹ ˈɛskɔːɹt fɔːɹ ˌɛsˌeɪsˈiː bˈiː fˈɪfti sˈuːpɚfˌɔːɹtɹəs ænd bˈiː θˈɜːɾi sˈɪks pˈiːsmeɪkɚ bˈɑːmɚz wˌaɪl flˈaɪɪŋ ˌoʊvɚ wˈɛstɚn jˌʊɹɹəpˈiən ˈɛɹspeɪs ˌɔn ðɛɹ dɪtˈɜːɹəns ɐlˈɜːt mˈɪʃənz.
In England, the mission of the 123d was to provide fighter escort for SAC B-50 Superfortress and B-36 Peacemaker bombers while flying over Western European airspace on their deterrence alert missions.