Montenegro’s parliament on Friday supported the Balkan country’s membership in NATO in a historic turn toward the West amid protests by Russia and the pro-Russia opposition.

Lawmakers voted 46-0 in the capital of Cetinje to ratify the accession treaty with the Western military alliance. They then stood up and applauded the decision.

The parliament has 81 members, but pro-Russia opposition lawmakers boycotted the session. Several hundred opposition supporters gathered outside the hall before the vote.

Montenegro has a small military of around 2,000 troops, but it is strategically positioned to give NATO full control over the Adriatic Sea. The other Adriatic nations — Albania, Croatia and Italy — already are in the alliance.