 This meant that Switzerland, which had officially boycotted the 1956 Games because of the Soviet Union's recent invasion of Hungary, still brought home a medal because of its participation in the equestrian portion several months earlier.The second instance was during the 2008 Summer Olympics, when the equestrian events were held in Hong Kong rather than Beijing.This decision was made when, in 2005, international veterinary groups refused to certify the main Olympic city as free of equine diseases.