the necessary measures of defence. The aid of His Majesty the King of 'Iraq in the event of war or the imminent menace of war will consist in furnishing to His Britannic Majesty on 'Iraq territory all facilities and assistance in his power including the use of railways, rivers, ports, aerodromes and means of communication. Article 5. It is understood between the High Contracting Parties that responsibility for the maintenance of internal order in 'Iraq and, subject to the provisions of Article 4 above, for the defence of 'Iraq from external aggression rests with His Majesty the King of 'Iraq. Nevertheless, His Majesty the King of 'Iraq recognises that the permanent maintenance and protection in all circumstances of the essential communications of His Britannic Majesty is in the common interest of the High Contracting Parties. For this purpose and in order to facilitate the discharge of the obligations of His Britanic Majesty under Article 4 above His Majesty the King of 'Iraq undertakes to grant to His Britannic Majesty for the duration of the Alliance sites for air bases to be selected by His Britannic Majesty at or in the vicinity of Basra and for an air base to be selected by His Britannic Majesty to the west of the Euphrates. His Majesty the King of 'Iraq further authorises His Britannic Majesty to maintain forces upon 'Iraq territory at the above localities in accordance with the provisions of the Annexure of this Treaty on the understanding that the presence of those forces shall not constitute in any manner an occupation and will in no way prejudice the sovereign rights of 'Iraq. Article 6. The Annexure hereto shall be regarded as an integral part of the present Treaty. Article 7. This Treaty shall replace the Treaties of Alliance signed at Baghdad on the tenth day of October, One thousand nine hundred and twenty-two of the Christian Era 1, corresponding to the nineteenth day of Safar, One thousand three hundred and forty-one, Hijrah, and on the thirteenth day of January, One thousand nine hundred and twenty-six, of the Christian Era 2, corresponding to the twenty-eighth day of Jamadi-al-Ukhra, One thousand three hundred and forty-four, Hijrah, and the subsidiary agreements thereto, which shall cease to have effect upon the entry into force of this Treaty. It shall be executed in duplicate, in the English and Arabic languages, of which the former shall be