Serbia participates in the NATO Individual Partnership Action Plan programme, but has no intention of joining NATO, due to significant popular rejection, largely a legacy of the NATO bombing of Yugoslavia in 1999. It is an observer member of the Collective Securities Treaty Organisation (CSTO) The country also signed the Stability Pact for South Eastern Europe. The Serbian Armed Forces take part in several multinational peacekeeping missions, including deployments in Lebanon, Cyprus, Ivory Coast, and Liberia.