In combat, what does the term 'supplementary position' refer to?

The term 'supplementary position' refers to a location that provides support to the main fighting line by covering vulnerable areas, particularly flanks that may be exposed to enemy attack. When infantry units are engaged in combat, it is crucial to secure and protect the flanks, as a breach can compromise the entire formation and expose it to encirclement. Therefore, establishing a supplementary position to enhance the defensive capability of the main line is vital for maintaining tactical flexibility and effectiveness on the battlefield.

Regarding the other choices, a position for retreating troops does not align with the concept of a supplementary position, as supplementary positions are meant for defense, not retreat. A base camp location refers to a stationary site used for logistical support and does not involve the dynamic nature of combat operations. Similarly, a position designated for artillery support serves a different purpose, focusing on indirect fire rather than the direct defense of infantry units.