A significant milestone in the development of the Non-Aligned Movement was the 1955 Bandung Conference, a conference of Asian and African states hosted by Indonesian president Sukarno, who gave a significant contribution to promote this movement. Bringing together Sukarno, U Nu, Nasser, Nehru, Tito, Nkrumah and Menon with the likes of Ho Chi Minh, Zhou Enlai, and Norodom Sihanouk, as well as U Thant and a young Indira Gandhi, the conference adopted a "declaration on promotion of world peace and cooperation", which included Zhou Enlai and Nehru's five principles, and a collective pledge to remain neutral in the Cold War. Six years after Bandung, an initiative of Yugoslav president Josip Broz Tito led to the first "Conference of Heads of State or Government of Non-Aligned Countries", which was held in September 1961 in Belgrade. The term "non-aligned movement" appears first in the fifth conference in 1976, where participating countries are denoted as "members of the movement".