International Groups from G-1 to G-77

1. G1: The G1, or Group of One, does not actually exist as a formal group. The term is sometimes used to refer to the United States as the sole superpower in the world.
2. G3: The G3 is a group composed of three countries: Germany, France, and the United Kingdom. It was formed in the early 1990s to coordinate their foreign policy on issues such as security, defense, and economic matters.
3. G5: The G5 is a group composed of five emerging economies: Brazil, China, India, Mexico, and South Africa. The group was formed in 2006 to increase their influence in international affairs and to promote economic cooperation among themselves.
4. G6: The G6, as mentioned earlier, was a group composed of six industrialized democracies: France, Germany, Italy, Japan, the United Kingdom, and the United States. The group was formed in 1975 and later became the G7 and then the G8.
5. G7: The G7 is a group composed of seven industrialized democracies: Canada, France, Germany, Italy, Japan, the United Kingdom, and the United States. The group was formed in 1976 after Canada joined the G6.
6. G8: The G8 is a group composed of the G7 countries plus Russia. Russia was added to the group in 1997, making it the G8.
7. G10: The G10 is a group composed of eleven countries: Belgium, Canada, France, Germany, Italy, Japan, the Netherlands, Sweden, Switzerland, the United Kingdom, and the United States. The group was formed in 1962 to coordinate their positions on monetary and financial issues.
8. G15: The G15 is a group composed of 17 developing countries from Asia, Africa, and Latin America. The group was formed in 1989 to promote cooperation among developing countries and to increase their influence in international affairs.
9. G20: The G20 is a group composed of 19 countries and the European Union. The group includes the G7 countries plus emerging economies such as China, India, Brazil, and South Africa. The G20 was formed in 1999 to promote international financial stability and to address global economic issues.
10. G77: The G77 is a group composed of 134 developing countries. The group was formed in 1964 to promote the economic and social development of developing countries and to enhance their bargaining power in international forums.

Each of these groups has played a significant role in shaping global economic policies and addressing international issues. By coordinating their efforts, these groups have been able to achieve greater influence and impact than they would have had individually.