How does engaging the enemy early contribute to defense in-depth?

Engaging the enemy early is integral to enhancing the effectiveness of a defense strategy because it establishes a proactive approach that aims to disrupt and delay enemy advances. By engaging the enemy early, a defending force can inflict damage and create obstacles before the enemy has a chance to consolidate their strength or coordinate a full assault. This forward engagement helps to shape the enemy's options, forcing them to react to the defending force’s actions instead of executing their intended plan.

Moreover, early engagement contributes to situational awareness, enabling the defending unit to gather intelligence on enemy movements and intentions. This can lead to better defensive positioning and preparation for subsequent phases of the battle, as the defenders can anticipate the enemy's actions and adjust their defenses accordingly. Thus, it enhances the overall efficacy of the defense strategy, ensuring that the defenders are not merely waiting for an attack but actively influencing the battlefield dynamics.