Reaffirms paragraph 6 of resolution 1157 (1998) of 20 March 1998, and endorses the recommendation of the Secretary-General to complete the withdrawal of all military personnel, with the exception of one infantry company, the helicopter unit, the signals and medical support units and 90 military observers, no later than 1 July 1998, and in accordance with paragraph 38 of his report of 17 April 1998;