[setr]

The AMEX car rental coverage specifically calls out “events based upon war, or acts of war (declared, or undeclared)” as not covered.

Given that these clauses tend to arise from filed claims, I imagine someone attempted to use their car for a car-bombing, and then with a stroke of brilliance later tried to file an insurance claim.

Interestingly, that clause also cancels the theft coverage — so if your car is stolen it’s covered, unless used to engage in an act of war.