Mezue ahịrịokwu na-esonụ: N'afọ 2004, mba iri sonyeere EU. (Estonia, Latvia, na Lithuania, ndị bụbu akụkụ nke Soviet Union; Czech Republic, Hungary, Poland, Slovakia, na Slovenia, mba ise bụbu ndị Kọmunist; Malta, na agwaetiti e kewara ekewa bụ́ Saịprọs.) Bulgaria na Romania sochiri ha na 2007. Ọchịchị Russia kọwara mgbasawanye ndị a dị ka mmebi nke nkwa NATO ịghara ịgbasawanye "otu sentimita asatọ n'ebe ọwụwa anyanwụ" na 1990. Russia tinyere aka n'ọtụtụ esemokwu abụọ gbasara gas na Belarus na Ukraine nke tinyere gas na Europe n'ihe ize ndụ. Russia na-etinyekwa aka na
obere agha na Georgia n'afọ 2008.