In the late 1600’s , a French military engineer made improvements on the new fortress design. He added slopes so that attackers could no longer be protected when they got close to the fortress (these slopes are called glacis).A glacis is an artificial slope of earth placed in front of the wall of a defended position. The slopes are constructed to keep attackers under the fire of the defenders. Without the glacis, on natural ground level, troops attacking any high structure achieve a degree of protection from its fire when they get close to it. Raising the ground to form a glacis allows the defenders to keep the attackers under fire from a bastion or a parapet.
Vauban also improved on the bastion design to allow the attackers to be enfiladed. This meant they were designed to be able to shoot at many angles. An attacker is “enfiladed” if the defenders can shoot straight down the line of attack. For example if the defender can shoot down the length of a trench then the trench is “enfiladed”.
Vauban also added trenches as defense mechanisms.
Fort McHenry in Baltimore, La Citadelle in Quebec City and Fort Ticonderoga in New York are all examples of the Vauban fortress design.
his design of the fortress was used up to the late 1800s
will recruiting a faction best units still only be possible through fortressess or can it also be done with cities.
check this wiki site about the brilliant fortress designer http://en.wikipedia.org/wiki/Vauban
Remember to Edit instead of double posting please. ~Emp. Meg