Which of the following is NOT an example of combat engineering?

Terrain analysis is primarily a preparatory and assessment function concerning the geographic and physical features of an area, rather than a direct engineering action taken during combat scenarios. Combat engineering focuses on the construction, destruction, or alteration of the battlefield environment to support military operations.

Mobility refers to the effort to enable movement on the battlefield, often through the creation or maintenance of routes for forces and equipment; counter-mobility deals with hindering enemy movement, such as constructing obstacles; and survivability involves measures taken to protect personnel and equipment from enemy action. Each of these aspects directly contributes to the effectiveness of military operations in combat situations, while terrain analysis serves as a supporting role, providing critical information that can inform planning but does not represent an active combat engineering function.