The stage was set for a long siege which Pompey could not afford. Paterculus states that Caesar moved quickly and relied on his own luck while Pompey endured the siege until he discovered a weak point in Caesar's walls through which he marched men up 'that Caesar's men would be forced into a tactical retreat. Seager also claims that it was Caesar's speed and luck that helped him break the blockade of Brundisium overseen by Bibulus. Pitassi, in his Marines of Rome, recalls Pompey's use of the fleet to pursue Caesar's retreating men and that his command of the sea had pushed Caesar eastward. Additionally, this reliance on a strong navy might have helped make Spain so easy for Caesar to conquer, as Pompey would have been busy raising legions and navies in