Chairpersons of the NAM had included such diverse figures as Suharto, militaristic anti-communist, and Nelson Mandela, a democratic socialist and famous anti-apartheid activist. Consisting of many governments with vastly different ideologies, the Non-Aligned Movement is unified by its declared commitment to world peace and security. At the seventh summit held in New Delhi in March 1983, the movement described itself as "history's biggest peace movement". The movement places equal emphasis on disarmament. NAM's commitment to peace pre-dates its formal institutionalisation in 1961. The Brioni meeting between heads of governments of India, Egypt and Yugoslavia in 1956 recognized that there exists a vital link between struggle for peace and endeavours for disarmament.