Which type of maneuver involves attacking the enemy's flanks or rear?

The maneuver that involves attacking the enemy's flanks or rear is known as Single Envelopment. This tactic is designed to create a situation where the enemy is caught off guard and unable to effectively defend against a multi-directional assault. By focusing the attack on the sides or rear of the enemy position, forces can exploit vulnerabilities that are often less fortified compared to the front lines.

Single Envelopment is particularly effective because it disrupts the enemy's command and control, limits their ability to redeploy resources for defensive measures, and can lead to encirclement. This tactic exemplifies the principle of seeking advantageous positioning over the enemy, which can lead to decisive victories in battlefield operations.

The other options do not accurately describe the maneuver in question. A Frontal Attack typically engages directly with the enemy head-on, a Direct Assault involves attacking an enemy position without considerations for flanking, and Cover and Concealment refers to methods used to hide troops and equipment rather than a specific offensive strategy. Therefore, Single Envelopment is the correct term for the maneuver that focuses on attacking the enemy's flanks or rear.