A redoubt is a fort or fort system usually consisting of an enclosed defensive emplacement outside a larger fort, usually relying on earthworks, though others are constructed of stone or brick.
Battle of Worcester Fort Royal Hill Siege of Worcester (1646) Railroad Redoubt Mobile warfare Hawthorn Ridge Redoubt Fire support base Redan Forward operating base Battle of Yorktown Lines of Torres Vedras Earthworks (engineering) Charge of the Light Brigade Battle of Poltava Vauban Wars of the Three Kingdoms Battle of Borodino Siege of Vicksburg Battle of Bunker Hill Peninsular War Siege Fortification Pensacola, Florida War in Afghanistan (2001–present) English Civil War Iraq War Vietnam War Florida World War I