What form of attack is designed to cause the enemy to react in a specific manner?

The form of attack designed to cause the enemy to react in a specific manner is a feint. A feint is a tactic used to mislead the enemy into believing that an attack will happen at a certain location or time, thereby prompting them to allocate resources or reposition forces in response. This diversionary tactic is often employed to create opportunities for the main attack elsewhere, thereby enhancing the overall effectiveness of the operation.

In a feint, the intention is not to achieve immediate decisive results but rather to exploit the enemy's reactions to gain a tactical advantage. This makes the feint an essential component of operational art, allowing commanders to manipulate the enemy's decisions and actions.

Other options represent different types of engagements that do not primarily focus on eliciting a specific enemy reaction through deception. For instance, counterattacks and raids possess different strategic purposes—focusing on offensive operations against an already engaged enemy or conducting a swift operation to destroy an enemy target without the intent to mislead. A demonstration would showcase strength or intent but does not involve the element of deception meant to provoke a specific enemy response.