Escalating geopolitical conflict, including direct hostilities, regional instability, cyber disruption and shipping route closures can place immediate and complex pressure on contracts in the energy sector. This checklist provides a structured, practical framework for considering how to assess force majeure (FM) risk in an active conflict or war environment and whether FM could be successfully invoked under English law in this scenario. The checklist also illustrates how this analysis interacts with frustration and contractual termination rights and includes some drafting points for parties to consider in relation to future deals in order to address war risks in contractual FM provisions. It is designed for lawyers and commercial teams working across oil and gas, LNG, trading, infrastructure and energy supply chains, where disruption often arises either directly through physical impossibility at the delivery point, or indirectly through upstream or downstream ‘domino’ effects. Its purpose is not only to assess whether a FM claim is viable, but to support informed, risk-aware decision-making in fast-moving conflict scenarios. This checklist addresses FM arising from war-related physical