"Rome Armed to the Teeth" refers to the military strength and preparedness of ancient Rome. The Roman army was known for its discipline, organization, and advanced tactics, which allowed it to conquer vast territories. Soldiers, called legionaries, were well-trained and equipped with weapons like the gladius and pilum, making them formidable in battle. The phrase also highlights the importance of military power in maintaining Roman dominance. The empire invested heavily in fortifications, such as walls and forts, to protect its borders. This military readiness was crucial for both expansion and defense, ensuring Rome's status as a leading power in the ancient world.