They consisted of three great lines, strengthened by about 150 redoubts, and earthworks Vedras, of various descriptions, mounting some 600 cannon; 1810-11.
A strong earthen rampart, flanked with bastions and redoubts, surrounded the City, its liberties, Westminster and Southwark, making an immense enclosure.
The works and town are carefully guarded on every side by redoubts and fortifications, and are commanded by batteries on the surrounding hills.
Nevertheless he had every intention of delivering a heavy and decisive counterstroke when the right moment should come, and meantime his defensive tactics would certainly have full play on this prearranged battlefield with its elaborate redoubts, bombproofs and obstacles, and its garrison of a strength obviously equal (and in reality superior) to that of the assailants.
On the north-west front, 203-Metre Hill, in advance of the main line, was occupied by strong semi-permanent works, with trenches and redoubts to either flank; and 174-Metre Hill, 1500 yds.