The U.N. secretary-general on Monday appointed a Swede and an American to head a special commission that will supervise the destruction of Iraq's chemical and biological weapons.

Javier Perez de Cuellar named Swedish Ambassador Rolf Ekeus as the commission's executive chairman and Robert Gallucci, who served in the U.S. Arms Control and Disarmament Agency, as Ekeus' deputy.The 25-member commission will be assisted by a number of experts serving as inspectors, disposal teams and field support experts to monitor the destruction of the weapons, which must be completed in 90 days beginning April 3 when the Security Council adopted the cease-fire resolution.