Accordingly, after disembarking at their leisure, the Turkish army moved forward, and took their post upon St. Stephen's Hill. From this eminence they commanded a full view of the town, the hills sloping gently down to the foot of the walls. In later times the first care of a general commanding the defence would have been to construct formidable works upon this commanding position. But the cannon of that period were so cumbrous and slowly worked, and so inaccurate in their aim, that the advantage of occupying a position that would prevent an enemy from firing down into a town was considered to be more than counterbalanced by the weakening of the garrison by the abstraction of the force required to man the detached work, and by the risk of their being surrounded and cut off without the garrison of the town being able to aid them.