WFUNA brought together people of divided countries – such as East and West Germany and Cyprus, and the opponents in conflicts, for example between Israel and Egypt in the late 1960s.

Other NGOs followed WFUNA's campaign which continued until 1975 when the Final Act was signed at Helsinki by 35 governments, including United States and Canada, establishing the CSCE process.

The 32nd General Assembly of the UN, in 1977, received a resolution from the 117th WFUNA Executive Committee meeting, which requested: "The Security Council of the UN to give urgent consideration to the taking of immediate steps to ensure that no State, multinational or other body or person be allowed to provide South Africa or Rhodesia with any equipment, technology or production of nuclear weapons of any kind".

The sentiments in this statement by UN Secretary-General, Dag Hammarskjöld, to WFUNA's 12th Plenary Assembly were shared by his successors: "I wish... to express my appreciation of your most essential service.

For many years WFUNA conducted a fund raising program based on the sale of first day covers of UN stamps and lithographs produced by artists and celebrities, such as Picasso, Lou Zheng Jang, Miró, Salvador Dalí, Ruben Leyva, Al Hirschfeld and Andy Warhol to promote the ideals of the UN.

WFUNA is in charge of the coordination of the network and puts efforts in building the capacity of its existing members while trying to provide counseling to those groups willing to create new UNAs in member-State that don't have any.

WFUNA's lithograph program started in 1966[5] for the 30th anniversary of the Federation and included a set of works from renowned artists like Salvador Dalí or Friedrich Hundertwasser.

Many of these works were later reproduced to be part of the WFUNA philatelic program with the stamps being included by the United Nations among their offer for general circulation.

In 2020, WFUNA also resumed with the traditional creation of art posters to commemorate specific events starting with the 75th Anniversary of the United Nations[6] and with idea of "fragile multilateralism" as a leading message.