Which tenet focuses on maintaining long-term sustainment of operations?

• A. Agility
• B. Convergence
• C. Endurance
• D. Depth

Answer: (C)

Endurance is the idea of keeping operations going over time. It covers the ability to sustain logistics support—like steady supplies, maintenance, personnel rotation, and resilient networks—for the entire duration of a mission, not just the initial phase. In practice, focusing on endurance means planning for fuel, food, spare parts, medical support, and transportation over the long run, and building redundancy to protect against delays or wear and tear that could stall the mission.

By contrast, agility is about rapid adaptation to changing conditions, convergence is about bringing capabilities together to act as a unified system, and depth concerns having sufficient breadth and redundancy in capabilities. So for maintaining long-term sustainment of operations, endurance is the best fit.