What forms of military action include envelopment and flank attack?

Maneuver as a form of military action involves the strategic movement of forces to position them advantageously against the enemy. This approach allows for various tactics designed to exploit weaknesses and achieve operational surprise.

Envelopment and flank attacks are key components of a maneuver strategy. Envelopment seeks to surround or cut off enemy forces by moving around their sides, while a flank attack targets the enemy’s sides, exploiting gaps in their defenses. Both tactics require the ability to move forces quickly and effectively, often taking advantage of terrain and the enemy's vulnerabilities.

In contrast, defense focuses on holding positions and repelling enemy attacks, while assault indicates a direct offensive action meant to take or destroy a specific objective. Reconnaissance primarily involves gathering information about the enemy’s position, capabilities, and intentions, rather than engaging in direct combat tactics. Thus, the distinction lies in the proactive movement and positioning that characterize maneuver, making it the correct choice for encompassing envelopment and flank attacks.