What is one method commanders use to add flexibility to their basic plans?

Commanders enhance flexibility in their basic plans primarily through the development of counterattack plans. This approach allows them to anticipate potential enemy actions and prepare effective responses that can be executed quickly. By having a counterattack plan in place, commanders can adapt to changing battlefield dynamics and seize the initiative whenever opportunities arise.

Counterattack plans not only provide alternatives if initial actions do not yield the desired outcomes but also reinforce the element of surprise, which can disrupt and unsettle the enemy. This level of preparedness enables commanders to maintain operational tempo and react decisively in the face of unforeseen challenges.

In contrast, establishing fixed positions can limit maneuverability and adaptability on the battlefield. Similarly, limiting reserves restricts the commander's ability to respond to developing situations effectively. Eliminating defensive options undermines a commander's posture by removing layers of capability that could be essential in a dynamic combat environment. Therefore, a well-crafted counterattack plan stands out as the method that truly enhances flexibility within the overall strategy.