Description: War is a state or period of armed hostility between two or more separate entities, aimed at reorganising a subjectively designed, geo-politically desired result. In 2003, Nobel Laureate Richard E. Smalley identified war as the sixth (of ten) biggest problems facing humanity for the next fifty years. In his book On War, Prussian military theoretician Carl Von Clausewitz calls war the "continuation of political intercourse, carried on with other means."