Membership in the UN is reserved for all peace-loving nations, as per its charter. After the '67 war the Arab League openly declared its 3 NO's, which included "No PEACE". Based on this, members of the Arab League are ineligible for UN membership. Sinc ethe UN did not expel thesse nations, the UN is not following its own charter, and is therefore illegal.
U.S. says it killed 10 AQAP Islamist militants in four air strikes in Yemen since April 23 (Reuters)