In the wake of the MH17 crash and against the backdrop of rising world conflict, the UK Civil Aviation Authority (CAA) is changing regulations concerning international flight operations over or near conflict zones, to align with Standard 4.1.2 of ICAO Annex 6 Part I. The proposed amendment (effective from 31 January 2026) requires operators not to commence flight or continue as planned unless it has been ascertained by every reasonable means available that the airspace containing the intended route from aerodrome of departure to aerodrome of arrival, including the intended take-off, destination and en-route alternate aerodromes, can be safely used for the planned operation. While the focus is commercial flight, under consideration is the extension to other types of operations, such as non-commercial and specialised non-commercial operations. From an insurance perspective, in the event of an associated accident or incident, the adequacy of the operator's enquiry and decision to continue planned flight operation will be at the forefront. In the CAA consultation, the definition of 'reasonable' is wide, intended to denote the use of information available to the operator either through official information published by the aeronautical information services or 'readily obtainable from other sources'.