How do engineers contribute to fortification during an offensive?

Engineers play a pivotal role in fortification during an offensive by designing and constructing temporary defenses. This approach is crucial because offensives often require rapid movement and adaptability to changing battlefield conditions. Temporary defenses can be quickly erected to provide protection for troops as they advance or occupy new territory. These might include barriers, trenches, and other structures that enhance the security of forces while allowing for the dynamic nature of offensive operations.

The ability to create temporary fortifications enables engineering units to support maneuvering troops effectively, facilitating offensive strategies while minimizing vulnerabilities. Engineers assess the terrain and the enemy's capabilities, allowing them to implement solutions that best protect and support the units involved in the offensive.

Other choices, such as creating permanent structures, reinforcing existing enemy fortifications, and training troops in unarmed combat, do not align with the immediate needs or strategies commonly associated with offensive operations, where speed and adaptability are paramount.