1. European Union:: Political centers are Brussels and Luxembourg and Strasbourg.Member states are 27,

Leaders:: European Council:: Herman Van Rompuy, European Commission:: José Manuel Barroso,  European Parliament::Jerzy Buzek (Building in Strasbourg, France), Council of the European Union:: Donald Tusk (Poland):

Member states of EU::Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, and the United Kingdom.

Currency of EU:: Euro

2. The Group of Eight (G8, and formerly the G6 or Group of Six) is a forum, created by France in 1975, for the governments of six major economies: France, Germany, Italy, Japan, the United Kingdom, and the United States. In 1976, Canada joined the group, in 1997, the group added Russia, thus becoming the G8.

37th meeting of G8 members held at Deauville, France , Next is to be held at Chicago, USA in 2012.

3. The Group of Twenty ( G20) is a group of finance ministers and central bank governors from 20 major economies: 19 countries plus the European Union, which is represented by the President of the European Council and by the European Central Bank. The current chair of G20 is France.

6th Summit of G20 is to be held at Cannes, France in December 2011, whereas 7th summit is to be held in Mexico.