What major aspect is essential for physical readiness in combat?

Overall fitness is considered the major aspect essential for physical readiness in combat because it encompasses a holistic approach to a soldier's physical capabilities. While endurance, strength, and flexibility are important components that contribute to a soldier's performance, overall fitness integrates these elements to ensure that soldiers can perform a wide range of tasks under various conditions.

A well-rounded fitness program prepares soldiers for the unpredictable nature of combat scenarios, where they must endure physical strain, move efficiently, and recover quickly. By focusing on overall fitness, soldiers build a balanced physical foundation that enhances their endurance, strength, flexibility, and agility, ensuring they are optimized for the demands of combat. This comprehensive aspect of physical readiness not only improves individual performance but also enhances unit effectiveness and resilience in challenging environments.