Which type of operation is characterized by the continuous offensive action against an enemy?

The operation characterized by continuous offensive action against an enemy is an attack. This type of operation focuses on sustaining pressure on the enemy through aggressive maneuvers, seeking to disrupt their activities and seize the initiative. The goal of an attack is not just to engage the enemy but to maintain momentum, often involving coordinated tactics across various forces to create overwhelming force at critical points.

In contrast, defensive maneuvers involve preparing for and responding to enemy actions rather than actively seeking to engage them. Standoff attacks typically involve engaging the enemy from a distance, which doesn't emphasize continuous offensive action in close proximity. Exploiting operations, while aggressive, focus on taking advantage of a breach or weakness created during previous actions rather than emphasizing sustained offensive engagement. Thus, the defining feature of an attack is its relentless and ongoing nature, which sets it apart from the other types of operations listed.