Соответствующая норма
Yemen
Practice Relating to Rule 73. Biological Weapons
In 1991, during a debate in the UN Security Council preceding the adoption of Resolution 699 concerning the destruction of biological weapons in Iraq, Yemen stated that it supported eradication of weapons of mass destruction in the Middle East, but that unilateral disarmament of Iraq would create imbalance in the region. 
Yemen, Statement before the UN Security Council, UN Doc. S/PV.2981, 3 April 1991, p. 42.