Spain bets on home-grown howitzers: €4.5 billion k9 deal to replace aging m109 fleet
Spain will design, build and arm its next-generation self-propelled howitzer on Spanish soil, ending four decades of dependence on the worn-out US-made M109. The €4.5 billion programme, unveiled by Indra on Tuesday, ropes in South Korean heavy-weights Hanwha for the K9 Thunder chassis but wraps it in a purely Spanish mission suite, armour and battlefield software.
The industrial choreography is already mapped out. The hulls—nicknamed barcazas inside the plant—will be welded and milled at El Tallerón in Gijón, the former Duro Felguera shipyard Indra bought last year. Final assembly of guns, electronics and 360° vision stacks shifts to a greenfield factory whose location is still under wraps; Madrid wants the ribbon cut by 2027. Once both lines hit rhythm they can push six howitzers a month, with the last of 128 gun platforms rolling into artillery barracks between 2033 and 2034.
A korean skeleton dressed in spanish skin
Hanwha’s K9 gives Spain a running start: 48 rounds on board, 155 mm/52-calibre barrel, 30 km reach with standard shells, 40 km with rocket-boosted ammo, and a logistics tail already battle-proven from the Turkish-Syrian frontier to the Indian Himalaya. But the deal is not a straight import. Indra will strip every turret, swap radios for the Spanish BMS battle-management stack, graft its own 360° situational-awareness mast and bolt on a domestically-built AFES fire-and-explosion suppression system.
The numbers are eye-watering. Hanwha pockets an undisclosed technology-transfer cheque, while Indra books the largest land-defence contract in Spanish history: 128 tracked howitzers, 120 ammunition resupply vehicles, 11 command posts and 21 armoured recovery rigs. The company claims 500 direct jobs and 1,500 more across a supplier lattice stretching from Asturias steelworks to Seville circuit-board shops.

Why madrid blinked first on european timelines
Europe’s next-gen howitzer project, the 155 mm “EuroPULS” family, is still doodling on whiteboards. Germany and France won’t field anything before 2035. Spain, facing 2030 obsolescence for its M109A5+ fleet, chose certainty today over promise tomorrow. The K9 airframe is already NATO-interoperable, and the Thunder platform has logged more export orders—Turkey, Poland, Australia, Egypt—than any other modern tube artillery.
Defence officials in Madrid also sniffed the drone lesson from Ukraine: static towed guns die fast. A self-propelled howitzer that can shoot, scoot and re-arm inside three minutes is now viewed as the minimum ticket to survive near-peer conflict. Spain wants that playbook written in Spanish.
Indra’s new plant will feed more than cannons. The same digitised turret core—computers, antennas, power electronics—will migrate to future Spanish armoured vehicles, giving the company a land-systems stack to market from Brasília to Bucharest. Hanwha, for its part, locks another European anchor client just as Seoul eyes NATO standardisation funds.
The first metal will be cut in 2026. Spain’s artillery crews, accustomed to 1960s-era recoil systems and manual fuze-setting, will instead tap touchscreens that calculate trajectory before the shell finishes spinning in the breech. Old M109s, some older than the soldiers who crew them, will finally head to the scrap line. Europe’s southern flank just swapped nostalgia for range.