Question: When was the Commander-in-Chief position abolished in the city that held the Tricorn Centre?

full_context: Document 1: Tricorn Centre: The Tricorn Centre was a shopping, nightclub and car park complex in Portsmouth, Hampshire, England. It was designed in the Brutalist style by Owen Luder and Rodney Gordon and took its name from the site's shape which from the air resembled a tricorn hat. Constructed in the mid-1960s, it was demolished in 2004. It was home to one of the first Virgin Megastores and housed the largest Laser Quest arena in Europe.
Document 2: 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 3: Plymouth: In 2004 the old Drake Circus shopping centre and Charles Cross car park were demolished and replaced by the latest Drake Circus Shopping Centre, which opened in October 2006. It received negative feedback before opening when David Mackay said it was already "ten years out of date". In contrast, the Theatre Royal's production and education centre, TR2, which was built on wasteland at Cattedown, was a runner-up for the RIBA Stirling Prize for Architecture in 2003.
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: Montevideo: Montevideo is the heartland of retailing in Uruguay. The city has become the principal centre of business and real estate, including many expensive buildings and modern towers for residences and offices, surrounded by extensive green spaces. In 1985, the first shopping centre in Rio de la Plata, Montevideo Shopping was built. In 1994, with building of three more shopping complexes such as the Shopping Tres Cruces, Portones Shopping, and Punta Carretas Shopping, the business map of the city changed dramatically. The creation of shopping complexes brought a major change in the habits of the people of Montevideo. Global firms such as McDonald's and Burger King etc. are firmly established in Montevideo.
Document 6: 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.
Document 7: 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 8: 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 9: Congress Center: The firm of Skidmore, Owings & Merrill (SOM) designed what is now Congress Center, with reflective dark glass that contrasts with the mostly white or lighter colored architecture common in Portland's architectural history. However, the highly reflective surface of Congress Center's glass curtain walls reflect all the nearby buildings. Most notable are 1000 Broadway, the Portland Building and Multnomah County Courthouse.
Document 10: Plymouth: The Roland Levinsky building, the landmark building of the University of Plymouth, is located in the city's central quarter. Designed by leading architect Henning Larsen, the building was opened in 2008 and houses the University's Arts faculty. It has been consistently considered one of the UK's most beautiful university buildings.
Document 11: 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 12: Cork (city): The retail trade in Cork city includes a mix of both modern, state of the art shopping centres and family owned local shops. Department stores cater for all budgets, with expensive boutiques for one end of the market and high street stores also available. Shopping centres can be found in many of Cork's suburbs, including Blackpool, Ballincollig, Douglas, Ballyvolane, Wilton and Mahon Point. Others are available in the city centre. These include the recently[when?] completed development of two large malls The Cornmarket Centre on Cornmarket Street, and new the retail street called "Opera Lane" off St. Patrick's Street/Academy Street. The Grand Parade scheme, on the site of the former Capitol Cineplex, was planning-approved for 60,000 square feet (5,600 m2) of retail space, with work commencing in 2016. Cork's main shopping street is St. Patrick's Street and is the most expensive street in the country per sq. metre after Dublin's Grafton Street. As of 2015[update] this area has been impacted by the post-2008 downturn, with many retail spaces available for let.[citation needed] Other shopping areas in the city centre include Oliver Plunkett St. and Grand Parade. Cork is also home to some of the country's leading department stores with the foundations of shops such as Dunnes Stores and the former Roches Stores being laid in the city. Outside the city centre is Mahon Point Shopping Centre.
Document 13: Plymouth: Plymouth has a post-war shopping area in the city centre with substantial pedestrianisation. At the west end of the zone inside a grade II listed building is the Pannier Market that was completed in 1959 – pannier meaning "basket" from French, so it translates as "basket market". In terms of retail floorspace, Plymouth is ranked in the top five in the South West, and 29th nationally. Plymouth was one of the first ten British cities to trial the new Business Improvement District initiative. The Tinside Pool is situated at the foot of the Hoe and became a grade II listed building in 1998 before being restored to its 1930s look for £3.4 million.
Document 14: 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 15: Southampton: Southampton's largest retail centre, and 35th largest in the UK, is the WestQuay Shopping Centre, which opened in September 2000 and hosts major high street stores including John Lewis and Marks and Spencer. The centre was Phase Two of the West Quay development of the former Pirelli undersea cables factory; the first phase of this was the West Quay Retail Park, while the third phase (Watermark Westquay) was put on hold due to the recession. Work is has resumed in 2015, with plans for this third stage including shops, housing, an hotel and a public piazza alongside the Town Walls on Western Esplanade. Southampton has also been granted a licence for a large casino. A further part of the redevelopment of the West Quay site resulted in a new store, opened on 12 February 2009, for Swedish home products retailer IKEA. Marlands is a smaller shopping centre, built in the 1990s and located close to the northern side of WestQuay. Southampton currently has two disused shopping centres: the 1970s Eaststreet mall, and the 1980s Bargate centre. Neither of these were ever commercially successful; the former has been earmarked for redevelopment as a Morrison's supermarket, while the future of the latter is uncertain. There is also the East Street area which has been designated for speciality shopping, with the aim of promoting smaller retailers, alongside the chain store Debenhams. In 2007, Southampton was ranked 13th for shopping in the UK.
ground_truth: 1969
sub_queries: Tricorn Centre >> location Answer: Portsmouth
When was Commander-in-Chief, Portsmouth abolished? Answer: 1969