Poland shows hedgehog defenses laid across its border

Poland will shore up another 125 miles of its border with Russia and Belarus with new defenses by the end of the year, according to the country’s armed forces.

Warsaw’s military added fresh defenses to just under 40 miles of its border last year, the Polish government said on Monday.

Why It Matters

The work is part of Poland’s Eastern Shield initiative, which the country describes as the “largest undertaking in history” to beef up protection along its border and NATO‘s territory close to Russia. It will weave in trenches and anti-tank obstacles with natural barriers like swamps and forests, plus anti-drone systems and shelters.

The idea of the work is to make it more difficult for Russian tanks and troops to advance in any invasion effort, while better protecting Polish forces and civilians.

NATO’s easternmost members have warned with increasing volume of a potential Russian attack on the alliance after a future ceasefire deal comes into force in Ukraine. Some officials have suggested Moscow may try to take territory from a Baltic state in a small-scale land grab just over the border.

The fortifications will snake along areas pressed up against Russia’s Kaliningrad exclave, the border with Belarus, a chunk of western Ukraine and the so-called Suwałki Gap, which links Belarus with the vast Russian military capabilities based in Kaliningrad. Russia used Belarus as a staging ground to launch its full-scale invasion of Ukraine nearly four years ago.

What To Know

Footage shared by the military’s General Staff on Tuesday showed what appeared to be extensive “hedgehog” concrete anti-tank defenses at a storage site in an unspecified location.

Poland will have built defenses along roughly 38 percent of its eastern and northern borders by the end of the year, the military said this week.

In 2025, authorities blocked five border crossings and prepared for another dozen to be blocked off, the Polish military said. Ten of these are road crossings and another seven are railway links.

Poland is NATO’s top military spender by gross domestic product (GDP), morphing into a formidable force on the alliance’s eastern fringe. Like the Baltic states of Estonia, Latvia and Lithuania, the reverberations of the Ukraine war rattled through Poland, and there is a significant multinational NATO presence on Polish territory.

The bloc announced in September it would increase its air presence along NATO’s eastern edge, two days after roughly 20 Russian drones crossed over into Poland on September 10. Moscow said at the time it had not deliberately targeted the country, but Polish prime minister, Donald Tusk, said the incident marked “the closest we have been to open conflict since World War II.”

Estonia, Latvia and Lithuania signed an agreement in January 2024 to build what has become known as the Baltic Defense Line, or a “network of bunkers, support points and distribution lines” along their border areas.

Sections of the Baltic Defense Line are funded individually by each country, and will include different types of defenses like “dragon’s teeth” anti-tank fortifications. Dragon’s teeth are concrete blocks used to halt tank advances and prevent mechanized infantry from gaining territory. This type of anti-tank fortification has littered Ukraine.

Latvia has said it started reinforcing its eastern border in March 2024 and will spend a total of €303 million ($355.7 million) over five years. Lithuania’s Defense Ministry said in August it would build multi-stage defenses up to 50 kilometers, around 30 miles, from the border line, using easily demolished bridges, trenches and ditches.

But Estonia’s defense minister, Hanno Pevkur, said earlier this month “the overall pace could definitely be quicker,” according to comments reported by the country’s ERR broadcaster.

What People Are Saying

“Full-scale war is now a reality in Europe, hybrid warfare is a constant, and strategic competition is intensifying – we are not at war, but not at peace either and we need to scale deterrence and defense accordingly,” Lieutenant General Karol Dymanowski, the vice chief of the Polish military’s General Staff, told NATO politicians in fall 2025.

“The results achieved so far confirm the systematic increase in the state’s defense capabilities and the resilience of border regions,” Warsaw’s defense ministry said on Monday.

What Happens Next

Construction started on the Eastern Shield in fall 2024 and is expected to finish up in 2028.