It has also been the trigger of a number of events that have shaken participating countries domestically . The departure of Uganda 's President Milton Obote to the 1971 CHOGM allowed Idi Amin to overthrow Obote 's government . Similarly , President James Mancham 's attendance of the 1977 CHOGM gave Prime Minister France-Albert René the opportunity to seize power in the Seychelles
1977 CHOGM
Commonwealth Heads of Government Meeting 1977
Commonwealth Heads of Government Meeting