 Annan also worked with several Arab and Muslim countries on women's rights and other topics.Beginning in 1998, Annan convened an annual UN "Security Council Retreat" with the 15 States' representatives of the council.It was held at the Rockefeller Brothers Fund (RBF) Conference Center at the Rockefeller family estate in Pocantico Hills, New York, and was sponsored by both the RBF and the UN.