Finland finishes 200 km of fence on the NATO-Russia line at Nuijamaa

Finland's Border Guard declared its 200-kilometre eastern barrier complete on Monday at Nuijamaa, near Lappeenranta, three years after the first pilot posts went into the ground at Pelkola.

The fence is 4.5 metres high, painted green, and topped with concertina wire. It sits beside a patrol road and a 25-metre cleared strip. Cameras, lights and loudspeakers are mounted on the line. The Guard says the barrier covers the stretches where a crossing is most likely and where building costs made sense. It does not run the full 1,340 kilometres of the Finland-Russia border, the longest land frontier any EU or NATO state shares with Russia.

The bill came in at €356 million, about €22 million under the original estimate in one official account, with annual upkeep put at €1.5 million to €3 million. The state paid about €3 million to roughly 1,000 landowners across 17 municipalities, from Lapland to the Gulf of Finland. The longest single run, about 140 kilometres, is in the southeast. North Karelia has about 35 kilometres. Kainuu and Lapland share about 25 kilometres more.

Interior Minister Mari Rantanen, speaking at the shuttered Nuijamaa crossing, said the line is part of a wider surveillance system and that it also serves the EU's external border. She left the door open to more fencing if the threat picture changes, and she asked for EU money for eastern member states that are building similar works.

The political origin is precise. In autumn 2022, after Vladimir Putin announced mobilization, nearly 17,000 Russians entered Finland in a single weekend. Party leaders agreed that October that a partial fence was needed. Work started in April 2023. In late 2023 the government closed the eastern crossings after a surge of asylum seekers arriving from the Russian side, a pattern Helsinki called directed migration. Those crossings remain shut.

Estonia, Latvia, Lithuania and Poland have already put up fences on their borders with Belarus for the same stated reason. Finland's version is the NATO-EU line that faces Russia itself. The Border Guard has been taking visiting teams from Europe, the United States and Asia to look at the kits and the camera stack.

A fence of this length does not seal a 1,340-kilometre forest and lake frontier. It forces a crossing attempt onto watched ground and gives patrols a road and a sightline. That is the operational claim. The strategic claim is different. Helsinki is telling Moscow, and telling its own public, that the 2022-23 spike will not be allowed to repeat through the same tree line.

Rantanen now wants Brussels to treat eastern fences as shared infrastructure. If that money arrives, the 200 kilometres at Nuijamaa become a template rather than a finished product. If it does not, Finland will decide alone whether to extend the steel into the next set of lakes.

The Border Guard finished slightly ahead of schedule. The crossings behind the fence are still closed. Those two facts, taken together, describe Finnish policy on the eastern line as of this week: the barrier is up, the gates stay shut, and the minister is already talking about the next length.

Nuijamaa, Vaalimaa and Imatra were the three busiest international posts on this frontier. Vainikkala is the only rail crossing. All of them sit inside the Southeast Finland Border Guard District. Completing the fence in that district first was not a coincidence. That is where the road net and the old crossing traffic made a barrier both usable and visible.

Russia has not issued a construction schedule of its own for this sector. A closed Finnish gate and a 4.5-metre fence already describe the border that Moscow faces on NATO's longest edge. The next Finnish decision is whether 200 kilometres is a finished job or a first instalment paid for in Helsinki and, if Rantanen gets her way, in Brussels.