Question: When was the commander in chief of the city where the United Services Recreation Ground is located abolished?

full_context: Document 1: Chief of Army Staff (Pakistan): In 1969, the title of the army command was changed from ``Commander - in - Chief ''to`` Chief of Staff'' with President Yahya Khan acting as Commander - in - Chief and General A.H. Khan as Chief of Staff. On 20 March 1972, the post was renamed as ``Chief of Army Staff ''(COAS) with Lieutenant - General Tikka Khan elevated to four star rank to be appointed as army's first chief of army staff.
Document 2: Buenos Aires Cricket Club Ground: Buenos Aires Cricket Club Ground was a cricket ground in Buenos Aires, Argentina. The ground, located in the Palermo district, gained historic relevance because the first football (in 1867) and rugby union (in 1873) matches in Argentina were played there.
Document 3: United Services Recreation Ground: The United Services Recreation Ground is a sports ground situated in Burnaby Road, Portsmouth, Hampshire, England. The ground is also bordered to the north by Park Road, along which the railway line to Portsmouth Harbour and Gunwharf Quays overlooks the ground, and to the east by Anglesea Road. The southern end of the ground is dominated by the Officer's Club building, which overlooks the ground. The ground is owned by The Crown. A multitude of sports have been played at the ground, including cricket, rugby and hockey. The ground was used by Hampshire County Cricket Club from 1882 to 2000, serving as one of three home grounds used during this period, alongside the County Ground, Southampton, and Dean Park, Bournemouth. United Services Portsmouth Cricket Club currently play at the ground. The ground is used in its dual capacity as a rugby venue by United Services Portsmouth Rugby Football Club, who have played there since 1882. The Royal Navy Rugby Union also use the ground for their home matches. The end names are the Railway End to the north and the Officer's Club End to the south.
Document 4: Commander-in-Chief, Portsmouth: The post of Commander-in-Chief, Portsmouth was merged with that of Commander-in-Chief, Plymouth in 1969 to form the post of Commander-in-Chief, Naval Home Command. The posts of Second Sea Lord and Commander-in-Chief Naval Home Command were amalgamated in 1994 following the rationalisation of the British Armed Forces following the end of the Cold War. In 2012, however, all distinct Commander-in-Chief appointments were discontinued, with full operational command being vested instead in the First Sea Lord; he now flies his flag from HMS "Victory".
Document 5: Ministry of Supply: The Ministry of Supply was abolished in late 1959 and its responsibilities passed to the Ministry of Aviation, the War Office and the Air Ministry. The latter two ministries were subsequently merged with the Admiralty to form the Ministry of Defence.
Document 6: Southampton: The city also has the Southampton Sports Centre which is the focal point for the public's sporting and outdoor activities and includes an Alpine Centre, theme park and athletics centre which is used by professional athletes. With the addition of 11 other additional leisure venures which are currently operate by the Council leisure executives. However these have been sold the operating rights to "Park Wood Leisure."
Document 7: Canadian Armed Forces: The Canadian Joint Operations Command is an operational element established in October 2012 with the merger of Canada Command, the Canadian Expeditionary Force Command and the Canadian Operational Support Command. The new command, created as a response to the cost-cutting measures in the 2012 federal budget, combines the resources, roles and responsibilities of the three former commands under a single headquarters.
Document 8: Montevideo: The Uruguayan Basketball League is headquartered in Montevideo and most of its teams are from the city, including Defensor Sporting, Biguá, Aguada, Goes, Malvín, Unión Atlética, and Trouville. Montevideo is also a centre of rugby; equestrianism, which regained importance in Montevideo after the Maroñas Racecourse reopened; golf, with the Club de Punta Carretas; and yachting, with the Puerto del Buceo, an ideal place to moor yachts. The Golf Club of Punta Carretas was founded in 1894 covers all the area encircled by the west side of Bulevar Artigas, the Rambla (Montevideo's promenade) and the Parque Rodó (Fun Fair).
Document 9: Bermuda: Bermuda has developed a proud Rugby Union community. The Bermuda Rugby Union team won the 2011 Caribbean championships, defeating Guyana in the final. They previously beat The Bahamas and Mexico to take the crown. Rugby 7's is also played, with four rounds scheduled to take place in the 2011–2012 season. The Bermuda 7's team competed in the 2011 Las Vegas 7's, defeating the Mexican team. There are four clubs on the island: (1) Police (2) Mariners (3) Teachers (4) Renegades. There is a men's and women's competition–current league champions are Police (Men) (winning the title for the first time since the 1990s) and Renegades (women's). Games are currently played at Warwick Academy. Bermuda u/19 team won the 2010 Caribbean Championships.
Document 10: Plymouth: Other sports clubs include Plymouth Albion R.F.C. and the Plymouth Raiders basketball club. Plymouth Albion Rugby Football Club is a rugby union club that was founded in 1875 and are currently competing in the third tier of Professional English Rugby . They play at the Brickfields. Plymouth Raiders play in the British Basketball League – the top tier of British basketball. They play at the Plymouth Pavilions entertainment arena and were founded in 1983. Plymouth cricket club was formed in 1843, the current 1st XI play in the Devon Premier League. Plymouth Devils are a speedway team in the British Premier League. Plymouth was home to an American football club, the Plymouth Admirals until 2010. Plymouth is also home to Plymouth Marjons Hockey Club, with their 1st XI playing in the National League last season.
Document 11: The Cliff (training ground): The Cliff is a sports ground in Broughton, Salford on the banks of the River Irwell, that was used as rugby league club Broughton Rangers' home ground until 1933. It was purchased by association football club Manchester United for use as their training ground. It continued to be used by United until 1999, when it was replaced by the Trafford Training Centre in Carrington. However, it continues to host some Manchester United academy matches, and it is sometimes used by Salford rugby league side as a training venue. As of 2018 The Cliff will be home to Manchester United Women.
Document 12: Canadian Armed Forces: The responsibility for military command remained with the British Crown-in-Council, with a commander-in-chief for North America stationed at Halifax until the final withdrawal of British Army and Royal Navy units from that city in 1906. Thereafter, the Royal Canadian Navy was formed, and, with the advent of military aviation, the Royal Canadian Air Force. These forces were organised under the Department of Militia and Defence, and split into the Permanent and Non-Permanent Active Militias—frequently shortened to simply The Militia. By 1923, the department was merged into the Department of National Defence, but land forces in Canada were not referred to as the Canadian Army until November 1940.
Document 13: Supreme Commander of the Swedish Armed Forces: The Supreme Commander is, apart from the honorary ranks held by the King of Sweden and in the past other members of the Swedish Royal Family, by unwritten convention normally the only professional military officer on active duty to hold the highest rank (a four-star General or Admiral). An exception was made 2009-2014 when Håkan Syrén was chairman of the European Union Military Committee.
Document 14: Southampton: Hampshire County Cricket Club play close to the city, at the Rose Bowl in West End, after previously playing at the County Cricket Ground and the Antelope Ground, both near the city centre. There is also the Southampton Evening Cricket League.
Document 15: United States Marine Corps: After the war, the Marine Corps fell into a malaise that ended with the appointment of Archibald Henderson as its fifth Commandant in 1820. Under his tenure, the Corps took on expeditionary duties in the Caribbean, the Gulf of Mexico, Key West, West Africa, the Falkland Islands, and Sumatra. Commandant Henderson is credited with thwarting President Jackson's attempts to combine and integrate the Marine Corps with the Army. Instead, Congress passed the Act for the Better Organization of the Marine Corps in 1834, stipulating that the Corps was part of the Department of the Navy as a sister service to the Navy. This would be the first of many times that the independent existence of the Corps was challenged.
ground_truth: 1969
sub_queries: United Services Recreation Ground >> location Answer: Portsmouth
When was Commander-in-Chief, Portsmouth abolished? Answer: 1969