Defence Contracts 2026

INTRODUCTION  Contributed by: Andrew Sanderson, Kingsley Napley LLP

access, conflicts of interest or allegations that a speci - fication favours one supplier. Bid teams should main - tain disciplined records of engagement and ensure that technical ambition is matched by evidence of manufacturability, certification and realistic delivery. Sovereignty localisation and market access Defence markets are increasingly open to international collaboration yet more demanding about domestic benefit. Governments seek assured access to pro - duction, maintenance, intellectual property, data and skilled personnel in a crisis. Requirements for local incorporation, domestic content, technology transfer, industrial participation, security-cleared facilities or local partners are therefore becoming central com - mercial terms rather than peripheral policy objectives. The result is a more regionalised market. European ini - tiatives encourage joint procurement and greater use of European industrial capacity; the United States and other major buyers continue to apply domestic prefer - ence and supply-chain rules; and many emerging mar - kets use offset or localisation obligations to develop sovereign capability. Multinational programmes can create scale and interoperability, but they also com - bine different budget cycles, export policies, security classifications and rules on workshare. Businesses should assess market access before committing bid expenditure. The relevant questions include foreign-ownership restrictions, investment screening, licensing, eligibility for classified work, local-content calculations, offset enforcement, tax and permanent-establishment exposure, and whether a proposed joint venture will receive the technology and decision-making authority needed to perform. Localisation promises should be costed and governed as enforceable obligations, with clear responsibility for suppliers, training, facilities and knowledge transfer. Supply chains: capacity and resilience Recent conflicts have exposed the limitations of lean production and globally dispersed defence supply chains. Long lead times for materials, microelec - tronics, specialist metals, propulsion systems and machine tools can determine whether or not a pro - gramme succeeds. A contractor may be legally able to supply an item but unable to secure enough com -

ponents, qualified personnel or test capacity to meet the promised schedule. Customers are responding with demands for supply- chain visibility, second sourcing, stockpiles, surge plans and notification of vulnerabilities. Contract terms increasingly address continuity of supply, pri - ority allocation, obsolescence, cyber incidents and changes in control of critical subcontractors. Prime contractors remain accountable for extensive supplier networks and may be required to flow security, audit, export-control, human-rights and quality obligations through several tiers. Due diligence should therefore extend beyond finan - cial solvency. It should identify geographic concen - tration, single-source dependencies, sanctions expo - sure, beneficial ownership, counterfeit risk, access to raw materials and the ability to operate during disrup - tion. Resilience measures must be reflected in price and programme governance; otherwise, an apparently competitive bid may transfer unmanageable cost to the contractor. Export controls, sanctions and responsible transfers Defence contracts are inseparable from export con - trols. Hardware, software, technical data, brokering, training and maintenance may each require authorisa - tion, and an exchange between colleagues or access to a shared digital environment can amount to a con - trolled transfer. Multinational teams must map the origin and classification of technology, the countries and nationals who may access it, end-use and end- user restrictions, re-export conditions and reporting requirements. Sanctions add a rapidly changing layer of risk. Restric - tions may apply to customers, banks, freight routes, insurers, shareholders and indirect counterparties. A licence under one regime does not resolve obliga - tions under another, and contractual performance may become unlawful after award. Effective clauses should address licence responsibility, co-operation, suspen - sion, alternative sourcing, disclosure and termination, while recognising that a broadly drafted force majeure provision may not answer every sanctions problem.

6 D EFENCE CON TRACTS 2 026

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