What is the main purpose of the 'Engage' phase in the kill chain?

The main purpose of the 'Engage' phase in the kill chain is to execute the attack on the identified target. This phase is critical as it involves the actual application of combat power, whether it be through direct fire, guided munitions, or other means of engagement. Once a target is prioritized and confirmed as valid through the preceding phases of the kill chain, engaging the target is the logical next step to achieve mission objectives.

Effective engagement requires precise coordination and may include considerations like weapon selection, firing methods, and ensuring that the engagement is lawful and proportionate. This phase is about translating the intelligence and assessments gathered into action, thereby moving from a planning or observation state to actively engaging the enemy forces.