Finland and Sweden could soon join NATO, moves that would likely infuriate Moscow and that officials say would further underscore Russia’s strategic error in invading Ukraine, News.az reports citing CNN.

NATO officials told CNN that discussions about Sweden and Finland joining the bloc have gotten extremely serious since Russia’s invasion.

US senior State Department officials said the matter came up at this week’s NATO foreign ministerial, which was attended by the foreign ministers from Stockholm and Helsinki.

Officials said the discussions underline the extent to which Russian President Vladimir Putin’s invasion has only served to reinvigorate and unify the NATO alliance — the exact opposite of Putin’s stated goals before the war began.