Notwithstanding anything to the contrary, it is understood and agreed that this extension does not cover any loss or damage directly or indirectly arising from any act committed in the course of disturbance of the public peach by any person taking part together with others in such disturbance, including strike, riot, civil commotion, malicious acts, looting, terrorist or political acts of violence, acts of sabotage, and any act of any lawfully constituted Authority for the purpose suppressing or minimizing or suppressing the consequences of any existing disturbance of the public peace.