The premature determination of a contract owing to the occurrence of an intervening event or a fundamental change in circumstances not contemplated by the parties at the outset.
Insurance Encyclopedia
Frustration clause
Marine war risks cargo insurance clause stating that there is no loss because of the termination (or frustration) of the transit due to an outbreak of hostilities. The property is not irretrievably lost but is prevented from reaching its destination. There must be actual physical loss/damage to the cargo to constitute an insured loss.
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A marine Policy clause which excludes claims based on frustration of the adventure by the operation of war perils.