Debellation n. : The act of conquering or subduing.

Example:


Taxonomy
debellatio, free encyclopedia, debellation, German states, the enemy, dissolution, national territory, unconditional surrender, Germany, military operations, capitulation, military, United Nations War Crimes Commission, footnote, states, hostilities, German Armed Forces, German government.

Defination from the web:
debellation) (Late Latin "Defeating, or the act of conquering or subduing", literally "warring (the enemy) down", from Latin ... In some cases debellation ends with a complete dissolution and annexation of the defeated state into the victor's national territory, as happened ...