Montenegro is about to approve accession to Nato on Friday within the face of Russian disapproval.
The nation’s parliament is anticipated to ratify the choice to hitch the Western army alliance later.
However the transfer is controversial inside Montenegro itself and has angered Moscow, which has banned Montenegrin wine imports, citing sanitary failings.
Montenegro’s Prime Minister Dusko Markovic has dismissed the choice as politically motivated.
A fifth of all wine exports go to Russia, and the ban could have important impression on gross sales.
“It’s clear that the choice is within the context of Nato membership,” Mr Markovic stated.
Montenegro was granted a membership motion plan by Nato in 2009, a decade after the alliance subjected the state to a three-month bombing marketing campaign throughout the Kosovo Struggle.
Nato membership stays extremely controversial within the small Balkan nation, which grew to become impartial in 2006.
Serbia and Montenegro – each bombed by Nato planes – have been initially one nation after the break-up of Yugoslavia.