Changes

If a bastion was successfully stormed it would provide the attackers with a stronghold from which to launch further attacks. Some bastion designs attempted to minimise this [[problem]]. This could be achieved by the use of retrenchments in which a trench was dug across the rear (gorge) of the bastion [[isolating]] it from the main [http://en.wikipedia.org/wiki/Defensive_wall rampart].

If a bastion was successfully stormed it would provide the attackers with a stronghold from which to launch further attacks. Some bastion designs attempted to minimise this [[problem]]. This could be achieved by the use of retrenchments in which a trench was dug across the rear (gorge) of the bastion [[isolating]] it from the main [http://en.wikipedia.org/wiki/Defensive_wall rampart].