Following the 1970 Cambodian coup d'état Yugoslavia maintained its relations with the GRUNK, a government-in-exile of Cambodia, based in Beijing.[1] At the same time Yugoslavia opened its embassy in Phnom Penh but directed all of its official communication through the Embassy of Cambodia in Belgrade which was controlled by GRUNK.[1]
Following the Khmer Rouge conquest of power and the declaration of the Democratic Kampuchea Yugoslavia was one of only a couple of countries in the world which maintained some formal bilateral relations with the new regime.[1] In early 1978 Yugoslav reporters of Tanjug, Vjesnik and Politika were the first from Europe to be allowed to tour the country for two weeks.[2] During the Cambodian–Vietnamese War, Belgrade believed that foreign interference was unjustified and could have led to wider Sino-Soviet conflict.[1]