Rank #14 · Europe
Poland was the highest-burden NATO member in 2025 at 4.5% of GDP, spending $46.8B as it absorbed the largest single arms-buying spree in modern European history. Off-budget financing through the Armed Forces Support Fund powered K2 tank, K9 howitzer, HIMARS, M1A1, and Patriot/Wisła deliveries.
Polish defence spending is funded through two channels: the regular Ministry of National Defence budget (anchored by the 2022 Homeland Defence Act, which mandates at least 3% of GDP) and the off-budget Armed Forces Support Fund (Fundusz Wsparcia Sił Zbrojnych) operated by Bank Gospodarstwa Krajowego. Combined, these account for the SIPRI-reported 4.5% of GDP burden in 2025 — the highest in NATO. Procurement is the dominant line, with multi-year obligations to South Korean (K2, K9, FA-50, Chunmoo) and US (M1A1/A2 SEPv3, AH-64E Apache, HIMARS, Patriot, Integrated Battle Command System) suppliers extending into the early 2030s. Personnel costs are growing as the army expands toward a 300,000-strong active+territorial force.
Poland fields approximately 216,000 active personnel including the Territorial Defence Forces (WOT, ~40,000), making it one of NATO's largest land forces. The Polish Land Forces are restructuring to a four-division model (16th, 18th, 12th, and the new 1st) with the 18th "Iron" Division anchoring the eastern flank. Equipment in service includes Leopard 2A4/A5/PL, M1A1FEP/A2 SEPv3 Abrams, K2 Black Panther, K9A1 Thunder, HIMARS, and the South Korean Chunmoo. The Air Force operates F-16C/D Block 52+, M-346 Bielik trainers, and is receiving F-35As (with first deliveries in 2026) plus FA-50PL. Polish Navy modernization remains the weakest link, focused on Miecznik frigates and a stalled Orka submarine program.
Poland's state-owned Polska Grupa Zbrojeniowa (PGZ) consolidates most legacy state-owned defence firms. PGZ produces K2PL (locally produced K2), Krab self-propelled howitzers, Borsuk IFVs, and is co-developing the Narew short-to-medium-range air defence system with MBDA. Privately held WB Group leads in loitering munitions (Warmate) and battlefield IT (TOPAZ), with combat-proven exports to Ukraine. The 2022-2025 South Korean and US arms orders included substantial Polonisation provisions — local production of K2 tanks at Bumar-Łabędy, K9 chassis at HSW, and integration of Chunmoo onto Jelcz trucks — designed to rebuild domestic capacity. Poland is now a significant aid donor to Ukraine and a re-export hub for refurbished Soviet-era equipment.
Poland is a frontline NATO state directly exposed to Russia and Belarus. The Suwałki Gap remains the most-cited NATO vulnerability. Polish forces host the US V Corps Forward HQ in Poznań, the US Army Garrison Poland, and the Aegis Ashore site at Redzikowo (declared operational late 2024). Poland is the principal logistical hub for Western military aid to Ukraine via Rzeszów-Jasionka airport. Belarus border tensions with migrant-instrumentation pressure intensified in 2025, prompting Operation Safe Podlasie and continued construction of the eastern barrier. Multiple airspace incidents — including a Russian missile fragment incident in 2024 and recurring drone overflights in 2025 — have driven increased forward air-defence deployments.
On 27 April 2026, SIPRI confirmed Polish 2025 spending at $46.8B (4.5% of GDP), the highest NATO burden. In late 2025 Warsaw signed the Wave 2 K2 tank contract with Hyundai Rotem (~180 tanks, 60+ produced in Poland through Bumar-Łabędy). The first F-35A for Poland was accepted at Lockheed Martin Fort Worth in late 2025 with deliveries to 31st Air Base Krzesiny in 2026. The Narew programme accelerated with MBDA CAMM-MR integration tests in 2025. In June 2025 Poland endorsed the new NATO 5%-by-2035 target. Defence Minister Kosiniak-Kamysz reiterated in March 2026 that Poland will maintain spending above 4% of GDP through the decade.
Direct exposure to Russia and Belarus, hard lessons from 2022, and a domestic political consensus on rearmament. The 2022 Homeland Defence Act locks in at least 3% of GDP, and the Armed Forces Support Fund off-budget financing has pushed total outlays above 4.5% — the highest in NATO.
K2 Black Panther tanks (Wave 1 + Wave 2), K9 Thunder howitzers, FA-50 light fighters, Chunmoo MLRS from South Korea; M1A1FEP/A2 SEPv3 Abrams, HIMARS, AH-64E Apaches, Patriot/Wisła, IBCS, and F-35A from the US; Leopard 2 modernization domestically. Total order value exceeds $100B.
Around 216,000 active personnel including the Territorial Defence Forces (WOT). The MoD target is 300,000 active+territorial by 2035. Land forces are reorganising into a four-division structure with the 18th "Iron" Division on the eastern flank.
Polska Grupa Zbrojeniowa (PGZ, state-owned) is the dominant prime — producing K2PL, Krab, Borsuk, and Piorun MANPADS. WB Group (private) leads in loitering munitions (Warmate) and battlefield IT. HSW makes howitzer chassis; Mesko produces ammunition.