On 11 April 1987, after Yitzhak Shamir became prime minister of Israel, Hussein engaged in direct talks with Shamir's foreign minister, Peres, in London. After reaching an agreement between Hussein and Peres on establishing an international peace conference, Shamir and the rest of the ministers in his cabinet rejected the proposal. On 8 November 1987 Jordan hosted an Arab League summit; Hussein enjoyed good relations with rival Arab blocs, and he acted as conciliatory intermediate. He helped mobilize Arab support for Iraq against Iran, and for Jordan's peace efforts, and helped to end the decade-long Arab boycott of Egypta boycott that began after it unilaterally signed a peace treaty with Israel in 1979. Hussein described the summit as one of the best moments in his life.