- Favorable terrain: Cassius recognizes the advantage of the high ground and favorable positioning that the enemy forces have fortified themselves with at Philippi. He believes that the hills provide a defensive advantage to his opponents and that launching an attack against them would be costly and disadvantageous.
- Logistical challenges: Cassius considers the logistical difficulties associated with transporting supplies, equipment, and troops across the rough and rugged terrain. He worries that the terrain would hinder their mobility and make it challenging to effectively support their forces.
- Morale and fatigue: Cassius is concerned about the morale and physical condition of his troops after the long and arduous march to Philippi. He understands the importance of rest, replenishment of supplies, and reinforcement to ensure that his army is in the best possible condition for battle.
- Strategic advantage: Cassius prefers to draw the enemy forces out of their fortified positions and lure them into a more favorable battlefield where they can take advantage of their mobility and cavalry units. He argues that engaging in battle at Philippe, on terms set by their adversaries, diminishes their chances of success.
Overall, Cassius' objections stem from his tactical assessment of the terrain and his desire to secure the most advantageous conditions for his army before engaging in battle.