Gracey was the ______ Commander-in-Chief of Pakistan Army.

The question asks about the sequential position of Gracey as Commander-in-Chief of the Pakistan Army. The correct answer is Second. General Sir Douglas David Gracey served as the Second Commander-in-Chief of the Pakistan Army. He assumed this crucial role in February 1948, succeeding General Frank Messervy, who was the first Commander-in-Chief after Pakistan's independence in 1947. Gracey's tenure, which lasted until January 1951, was instrumental in laying the foundational structure and professionalizing the newly formed Pakistan Army during its nascent years. His leadership was vital in establishing military protocols and organization.

• "Third," "Fourth," and "Fifth" are incorrect. General Ayub Khan succeeded Gracey, becoming the third Commander-in-Chief and the first native Pakistani to hold the position. Understanding this sequence is essential for comprehending Pakistan's early military history and leadership transitions.