The G6 (Group of Six) in the European Union was an unofficial group of the interior ministers of the six European states —France, Germany, Italy, Poland, Spain, and (no more because of BREXIT) the United Kingdom—with the largest populations and thus with the majority of votes in the Council of the European Union.
The G6 (Group of Six) was an unofficial alliance of the interior ministers of France, Germany, Italy, Poland, Spain, and the United Kingdom —the six most populous European nations —with the largest share of influence in the European Union's Council.