Which condition is associated with the maximum state of readiness in combat?

The maximum state of readiness in combat is known as Cruising Condition I. This condition signifies that a ship's crew is fully prepared for immediate action, with all operational systems manned, weapon systems ready to fire, and combat equipment fully operational. In this state, personnel are alert and ready to respond quickly to any threats or engagements.

Cruising Condition I is utilized particularly when a ship is likely to encounter hostile forces or is operating in a high-risk environment where immediate defensive or offensive actions may be required. This ensures that the crew can adapt swiftly to changes in the combat situation, maximizing their effectiveness during engagements. Different cruising conditions such as II, III, and IV represent varying levels of readiness, where the personnel and equipment are less prepared than in Condition I, thus explaining why they do not signify the maximum state of readiness.