WJC officials lobbied UN member states in favor of the adoption of UN General Assembly Resolution 181 of 1947, which called for the creation of a Jewish and an Arab state in Palestine. On 15 May 1948, the day of Israel's proclamation of independence, the WJC Executive pledged "world Jewry's solidarity" with the fledgling Jewish state. In Montreux, Switzerland, delegates from 34 countries attended the Second Plenary Assembly of the World Jewish Congress, held from 27 June to 6 July 1948.