High Quality Content by WIKIPEDIA articles! General Hastings Lionel "Pug" Ismay, 1st Baron Ismay, KG, GCB, CH, DSO, PC (21 June 1887 – 17 December 1965) was a British Indian Army officer and diplomat, remembered primarily for his role as Winston Churchill`s chief military assistant during the Second World War and his service as the first Secretary General of NATO from 1952 to 1957.