Leonard Monk Isitt  Air Vice Marshal Sir Leonard Monk Isitt (27 July 1891 – 21 January 1976) was a New Zealand military aviator and senior air force commander. In 1943 he became the first New Zealander to serve as the Chief of the Air Staff of the Royal New Zealand Air Force, a post he held until 1946. At the close of World War II, Isitt was the New Zealand signatory to the Japanese Instrument of Surrender. After the war, following retirement from the Air Force, he worked as chairman of Tasman Empire Airways. Leonard Monk Isitt was born on 27 July 1891 in Christchurch, New Zealand, the son of the Methodist minister, member of parliament and prohibitionist Leonard Monk Isitt and Agnes Martha Caverhill. Leonard Monk Isitt junior was educated at Mostyn House, Cheshire, England and Christchurch Boys' High School. He had one brother, Willard Whitmore Isitt (1894–1916), who was a Rifleman in the New Zealand Rifle Brigade in World War I and was killed in France on 31 October 1916. Following the outbreak of World War I he enlisted in April 1915 in the New Zealand Army and was assigned to the New Zealand Rifle Brigade. After service in Egypt he then moved to the Western Front where he was wounded in the head during the New Zealand Division's participation in the Battle of Flers–Courcelette. The scalp wound resulted in him being sent to England to recover, where he was discharged from the NZEF in March 1917. On 10 May 1917 he was granted a probationary commission in the Royal Flying Corps as a second lieutenant, which was confirmed a month later. He was assigned as a pilot to a reconnaissance squadron with most of his duties involving artillery cooperation. During his period he shot down a single enemy aircraft, before being transferred back to England to serve as a flying instructor. After volunteering for frontline service he was assigned to 98 squadron in October 1917, flying the DH.9 on bombing missions. Based at Abscon airfield he flew his first mission on 9 October when 10 aircraft attacked Mons railway station. During the raid they were attacked by 15 Fokkers and Pfalzes. Two other major raids followed on 14 and 23 October. The later raid, was on the Hirson railway station, which saw two aircraft of the squadron shot down. In addition to these bombing flights he was also undertaking aerial reconnaissance. In 1918 he was transferred to the Royal Air Force. At the close of World War I, New Zealand had no military air organisation of any sort.