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💥 '''War and allied perils''' is a category of risk in [[Definition:Insurance | insurance]] — most prominent in [[Definition:Aviation insurance | aviation]], [[Definition:Marine insurance | marine]], and [[Definition:Political risk insurance | political risk]] lines — encompassing losses caused by war, civil war, revolution, insurrection, hijacking, sabotage, confiscation by government authorities, and related hostile or politically motivated acts. Standard [[Definition:Aviation hull insurance | aviation hull]] and [[Definition:Aviation liability insurance | liability]] policies almost universally exclude these perils under an AVN 48B exclusion clause (or its equivalents), requiring insureds to purchase separate [[Definition:War risk insurance | war-risk]] coverage to restore protection. The segregation of war and allied perils into a distinct coverage layer reflects both the catastrophic accumulation potential of these risks and the insurance market's need to control and price them independently from standard operational perils.

⚙️ In the aviation market, war-risk coverage is typically written through specialist [[Definition:Underwriter | underwriters]] concentrated in the [[Definition:Lloyd's of London | London]] market and a handful of other global hubs. Policies cover the named perils — often enumerated to include strikes, riots, civil commotion, malicious acts, hijacking, and government seizure — and are subject to short cancellation provisions, sometimes as brief as seven days' notice, allowing insurers to withdraw capacity rapidly if geopolitical conditions deteriorate. This mechanism was invoked dramatically following the September 11, 2001 attacks, when war-risk coverage was cancelled and repriced across the global aviation fleet almost overnight, and again during the Russia-Ukraine conflict in 2022 when aircraft trapped in Russia triggered massive [[Definition:Confiscation | confiscation]] claims. In marine insurance, the Institute War Clauses provide an analogous framework, and hull war premiums are adjusted based on vessel trading routes through designated high-risk zones. Government schemes supplement private capacity in some markets: the U.S. Federal Aviation Administration's war-risk insurance program and the UK's Department for Transport aviation war-risk facility have both activated during periods of market stress.

🌍 The availability and pricing of war and allied perils coverage acts as a barometer of geopolitical risk, directly influencing airline route economics, shipping lane decisions, and sovereign risk assessments. When private-market capacity contracts — as it did after 9/11 and during major regional conflicts — governments must decide whether to step in as [[Definition:Insurer of last resort | insurers of last resort]], highlighting the intersection of insurance and public policy. For [[Definition:Reinsurer | reinsurers]] and [[Definition:Retrocession | retrocessionaires]], war-risk accumulations pose unique challenges because a single geopolitical event can simultaneously affect thousands of insured assets across an entire region, producing correlated losses that defy standard [[Definition:Catastrophe modeling | catastrophe-modeling]] assumptions. The evolving nature of threats — from conventional warfare to [[Definition:Cyber insurance | cyber-enabled]] attacks and state-sponsored confiscation — ensures that war and allied perils coverage remains one of the most dynamic and closely watched segments of the global insurance market.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:War risk insurance]]
* [[Definition:Terrorism coverage]]
* [[Definition:Aviation insurance]]
* [[Definition:Confiscation]]
* [[Definition:Political risk insurance]]
* [[Definition:Marine insurance]]
{{Div col end}}

Definition:War and allied perils - Revision history

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