Recalling Security Council resolution 1545 ( 2004 ) of 21 May 2004 , by which the Council authorized , for an initial period of six months as from 1 June 2004 , with the intention to renew it for further periods , the deployment of a peacekeeping operation called the United Nations Operation in Burundi , and the subsequent resolutions by which the Council extended the mandate of the Operation , the latest of which was resolution 1692 ( 2006 ) of 30 June 2006 , by which the Council extended the mandate of the Operation until 31 December 2006 , Recalling also its resolution 58/312 of 18 June 2004 on the financing of the Operation and its subsequent resolutions thereon , the latest of which was resolution 60/269 of 30 June 2006 , Reaffirming the general principles underlying the financing of United Nations peacekeeping operations , as stated in General Assembly resolutions 1874 ( SIV ) of 27 June 1963 , 3101 ( XXVIII ) of 11 December 1973 and 55/235 of 23 December 2000 , Mindful of the fact that it is essential to provide the Operation with the necessary financial resources to enable it to fulfil its responsibilities under the relevant resolutions of the Security Council ,