Patton argues that fatigue can alter how officers assess a situation, making difficulties appear more serious and prospects less favourable than they might otherwise seem. His warning is aimed particularly at senior commanders who receive reports from subordinates and must judge how much weight to give them.

The fuller passage suggests that information should be interpreted in light of the condition of the person providing it. An exhausted commander may describe a unit or battlefield situation more negatively because tiredness affects concentration, confidence and judgement. Patton therefore urges higher headquarters to distinguish between the actual condition of a formation and the state of mind of the officer reporting on it. The wider point is that assessments are not produced in isolation: physical exhaustion and emotional strain can influence how people interpret events. Recognising those influences can help decision-makers avoid treating a temporary pessimistic outlook as a complete picture of reality.

Full quotation

“General Officers: There are more tired division commanders than there are tired divisions. Tired officers are always pessimists. Remember this when evaluating reports. Generals must never show doubt, discouragement, or fatigue. Generals should adhere to one type of dress so that soldiers will recognize them. They must always be very neat.”