In military operations, what term is used for the planned series of actions to engage the enemy?

The term used for the planned series of actions to engage the enemy in military operations is "Offensive Maneuver." This concept encompasses a coordinated effort by military units to apply force against the enemy, aiming to seize the initiative, exploit weaknesses, and achieve specific operational or tactical objectives. An offensive maneuver involves detailed planning, understanding of the battlefield environment, and executing actions that can disrupt the enemy's capabilities while maintaining the momentum of the operation.

While "Operation Plan" refers to a broader document outlining the objectives and execution of a military operation, and "Campaign Strategy" describes the overarching plan for a series of related military operations over time, neither captures the specific action-oriented nature of an offensive maneuver. Similarly, "Tactical Assault" may pertain to specific, immediate engagements with the enemy but does not encompass the full range of planned actions and maneuvers that characterize a significant offensive operation. Thus, "Offensive Maneuver" remains the most precise choice reflecting a planned series of actions aimed at engaging the enemy.