United Nations Security Council Resolution 66
Adopted by the Security Council at its 396th meeting, by 8 votes to none, with 3 abstention (Ukrainian Soviet Socialist Republic, Union of Soviet Socialist Republics, United States of America) on 29 December 1948
The Security Council,
Having considered the report of the Acting Mediator on the hostilities which broke out in southern Palestine on 22 December 1948, 
Calls upon the Governments concerned:
(i) To order an immediate cease-fire;
(ii) To implement without further delay resolution 61 (1948) of 4 November 1948 and the instructions issued by the Acting Mediator in accordance with sub-paragraph (1) of the fifth paragraph of that resolution;
(iii) To allow and facilitate the complete supervision of the truce by the United Nations observers;
Instructs the committee of the Council appointed on 4 November to meet at Lake Success on 7 January 1949 to consider the situation in southern Palestine and to report to the Council on the extent to which the Governments concerned have by that date complied with the present resolution and with resolutions 61 (1948) and 62 (1948) of 4 and 16 November 1948;
Invites Cuba and Norway to replace as from 1 January 1949 the two retiring members of the committee (Belgium and Colombia);
Expresses the hope that the members of the Conciliation Commission appointed by the General Assembly on 11 December 1948  will nominate their representatives and establish the Commission with as little delay as possible.
 See Official Records of the Security Council, Third Year, Supplement for December 1948, document S/1152.
 See General Assembly resolution 194 (III)