This happy little amendment was included in my last car insurance renewal with Progressive.

Coverage under Part IV - Damage To A Vehicle does not apply for loss to a covered vehicle caused directly or indirectly by:
    a. war (declared or undeclared), including civil war;
    b. warlike action by any military force of any government, sovereign or other authority using military personnel or agents. This includes any action taken to hinder or defend against an actual or expected attack;
    c. insurrection, rebellion, revolution, usurped power, or any action taken by a governmental authority to hinder or defend against any of these acts;
    d. any accidental or intentional discharge, dispersal or release of radioactive, nuclear, pathogenic or poisonous biological material; or
    e. any intentional discharge, dispersal or release of chemical or hazardous material for any purpose other than its safe and useful purpose.

Nice.