Estonian Foreign Intelligence Service Director-General Kaupo Rosin on Tuesday warned of Russia's supposed plans to bolster its military presence on the border with Baltic states and Finland over the coming years.

Speaking to journalists ahead of the release of the agency's annual security report, Rosin cautioned that Moscow could "double" its military presence along NATO's eastern flank. The agency pointed out that the 31-member state alliance could face a "Soviet-style mass army" confrontation within the next decade, stressing that while Moscow's presence near the Finnish border was minimal before Helsinki's recent accession to NATO, the new potential army corps could consist of "two or three maneuver units with around a dozen fire support and combat support units."

"Defending against a possible conventional attack from such an army would require allied defense forces and defense industries to be significantly more prepared, capable, and better-stocked with ammunition and materiel than they currently are," the report said.