Sports sanctions are used as a way of psychological warfare, intended to crush the morale of the general population of the target country. Sports sanctions were imposed as part of the international sanctions against Federal Republic of Yugoslavia, 1992–1995, enacted by UN Security Council by resolution 757. The Gleneagles Agreement approved by the Commonwealth of Nations in 1977, committed member nations to discourage contact and competition between their sportsmen and sporting organizations, teams, or individuals from South Africa. However, it was not binding and unable to stop events such as the 1980 British Lions tour to South Africa or the 1981 South Africa rugby union tour of New Zealand.