The Washington Conference of 1922 on the Limitation of Armaments adopted a resolution for the appointment of a Commission of Jurists charged with the preparation of rules relating to aerial warfare and rules concerning the use of radio in time of war. The Commission was to consider whether the existing principles of international law still sufficed to apply to the methods of attack and defence introduced and developed since the second International Peace Conference of 1907. The Commission, presided over by John Bassett Moore, was composed of representatives of the United States, France, Great Britain, Italy, Japan and the Netherlands. It was to report its conclusions to each of the governments of the six countries. The Commission met from December 1922 to February 1923 at The Hague. It prepared rules for the control of radio in time of war (part I of the report of the Commission) and rules of air warfare (part II). Although these rules were never adopted in legally binding form they are of importance "as an authoritative attempt to clarify and formulate rules of law governing the use of aircraft in war" (Oppenheim/Lauterpacht, International Law, 7th ed., Vol. 2, p. 519). To a great extent, they correspond to the customary rules and general principles underlying treaties on the law of war on land and at sea.