25. Coll 30/211 'DEFENCE OF: Land, Sea & Air Facilities placed at the disposal of H.M.G. by the Rulers concerned.' Date: 1942/1942 Language: English
26. Coll 30/191 ‘Persian Gulf. Defence of the Persian Gulf. Establishment of aircraft facilities at Socotra and Salalah (Muscat) and Assembly Port at Masira Bay.’ Date: 1939/1946 Language: English Geographic region: SalalahJiddah IslandMasirah
27. Coll 30/192(1) ‘Persian Gulf. Defence BAHRAIN.’ Date: 1938/1942 Language: English Geographic region: Bahrain
28. Coll 30/192(3) ‘Persian Gulf. Defence of Bahrein (a) Employment of British officer & N.C.O. Instructor. Appt. of Capt A.C. Byard. (b) Bahrein Defence Force – Recruitment from personnel of Bahrein Petroleum Company.’ Date: 1939/1941 Language: English Geographic region: Bahrein
29. Coll 30/193 ‘Persian Gulf Defence. KOWEIT.’ Date: 1938/1942 Language: English Geographic region: Koweit
30. Coll 30/194 ‘Persian Gulf Defence. SHARJAH & DIBAI.’ Date: 1939/1943 Language: English Geographic region: SharjahDibai
31. Coll 30/198 ‘Persian Gulf Defence : - ABADAN.’ Date: 1942/1943 Language: English Geographic region: PersiaAbadan
32. File 57/1928 Pt 2 'Iraq-Nejd Relations: Frontier Situation' Date: 1928/1928 Language: English Geographic region: Koweit
34. File 57/1928 Pt 6 'Iraq-Nejd Relations: Koweit Situation. Air and Car Reconnaisances.' Date: 1927/1929 Language: English Geographic region: Koweit
35. File 57/1928 Pt 12 'Iraq-Nejd Relations: Koweit Frontier Situation.' Date: 1929/1930 Language: English