Hastings Ismay, 1st Baron Ismay

General Hastings Lionel "Pug" Ismay, 1st Baron Ismay (21 June 1887 – 17 December 1965) was a British politician, diplomat and general in the British Indian Army who was the first secretary general of NATO. He also was Winston Churchill's chief military assistant during the Second World War.

Ismay was born in Nainital, India, in 1887, and educated in the United Kingdom at Charterhouse School and the Royal Military College, Sandhurst. After Sandhurst, he joined the British Indian Army as an officer of the 21st Prince Albert Victor's Own Cavalry. During the First World War, he served with the Camel Corps in British Somaliland, where he joined in the British fight against Somali military leader and founder of the anti-colonial Dervish movement Mohammed Abdullah Hassan. In 1925, Ismay became an Assistant Secretary of the Committee of Imperial Defence (CID). After being promoted to the rank of colonel, he served as the military secretary for Lord Willingdon, the Viceroy of India, then returned to the CID as Deputy Secretary in 1936.