# BAE Systems and PGZ to expand large-calibre ammunition production The Warsaw Defence Plan also calls for air defence missile collaboration, drone and counter-drone development, and closer coordination of UK and Polish defence procurement. Published 2026-10-28 by TGOs. Canonical: https://tgos.io/news/2026/10/28/bae-systems-and-pgz-to-expand-large-calibre-ammunition/ BAE Systems and Poland’s PGZ are to expand large-calibre ammunition production capacity and capability under the Warsaw Defence Plan.[1] The UK Ministry of Defence announced the plan on 27 October 2026.[1] The ammunition commitment gives BAE Systems and PGZ a named role in the plan’s industrial work.[1] The UK announcement gives no funding amount, production quantity, site or timetable for the ammunition expansion.[1] The agreement sets out the first phase of defence cooperation under the new UK-Poland Security and Defence Partnership Treaty.[1] **Also announced** - The countries plan to collaborate on manufacturing and developing the next generation of air defence missiles.[1] - The agreement calls for co-development of drone and counter-drone technologies.[1] - The countries will share lessons from developing the British Type 31 and Polish Miecznik frigates, which are built from a common design.[1] ## Why it matters The UK and Poland also intend to coordinate defence procurement more closely.[1] That coordination will build on deals such as Poland’s procurement of its Narew air defence system from MBDA UK.[1] ## Sources 1. UK and Poland strengthen defences on Europe's Eastern flank, GOV.UK, 27 October 2026