Martial law
Martial law represents the imposition of rule by military authorities on an emergency basis, such as foreign invasion, rioting, or natural disaster. It is usually imposed on a temporary basis if the civilian government fails to function properly. Military forces may be deployed for various purposes such as to stop looting, maintain order, impose a curfew, and secure buildings of the government.
Martial Law Media
Martial law in Egypt: Egyptian tanks used in a checkpoint near midtown Tahrir during the 2011 Egyptian revolution.