Seven of these were part of the former Eastern Bloc (of which three were from the former Soviet Union and four were and still are members of the Central European alliance Visegrád Group), one of the former Yugoslavia (together sometimes referred to as the "A8" countries), and the remaining two were Mediterranean islands and former British colonies.
新加入的成员国中有七个是前东欧集团成员国，其中三个国家是过去的苏联加盟国，而另外四个属于中欧的联合组织维舍格勒集团，还有一个前南斯拉夫联盟成员国（上列八个国家有时被称为“A8”国家），而剩余两个都是地中海岛国并都曾是英国殖民地。