5th G7 summit

The 5th G7 summit was a meeting in 1979 for the leaders of Canada, the European Commission, France, Germany, Italy, Japan, the United Kingdom and the United States.
The international group of leaders were together in Japan June 28-29. The meetings were held at the State Guesthouse (Akasaka Palace) in Tokyo.
History.
The Tokyo summit of the Group of Seven (G7) was the 5th meeting in a series which began in 1976. 
This was the first G7 summit in Japan
The G8 and the summit are part of a consultation process. The G8 is not an international organization. It is an informal group.
Participants.
The participants were the "core members" of the group:
Overview.
The G7 leaders agreed to cooperate in the area of energy for developing countries.