Question:  The Front for the Liberation of Zimbabwe was announced in a city with an elevation of what?

<P0-S0> Lusaka is the capital and largest city of Zambia. <P0-S1>  One of the fastest developing cities in southern Africa, Lusaka is in the southern part of the central plateau at an elevation of about 1279 m . <P0-S2>  s of 2010 , the city's population was about 1.7 million, while the urban population is 2.4 million. <P0-S3>  Lusaka is the centre of both commerce and government in Zambia and connects to the country's four main highways heading north, south, east and west. <P0-S4>  English is the official language of the city, but Nyanja and Bemba are also common. <SEP> <P1-S0> John Landa Nkomo (22 August 1934 – 17 January 2013) was a Zimbabwean politician who served as Vice President of Zimbabwe from 2009 to 2013. <P1-S1>  After serving for years as a minister in the government of Zimbabwe, he was the Speaker of Parliament from 2005 to 2008. <P1-S2>  He was then appointed to the Senate in 2008 and was Minister of State in the President's Office in 2009. <P1-S3>  Nkomo was also a key figure in the Zimbabwe African National Union – Patriotic Front (ZANU–PF); he was National Chairman of ZANU–PF until December 2009, when he was elected as Vice President of ZANU–PF. <P1-S4>  As a consequence of his elevation to the party's vice presidency, he also became Vice President of Zimbabwe in December 2009. <SEP> <P2-S0> The Front for the Liberation of Zimbabwe (FROLIZI) was an African nationalist organisation established in opposition to the white minority government of Rhodesia. <P2-S1>  It was announced in Lusaka, Zambia in October 1971 as a merger of the two principal African nationalist factions in Rhodesia, the Zimbabwe African People's Union (ZAPU) and the Zimbabwe African National Union (ZANU). <P2-S2>  However, it was in fact a breakaway faction of both ZAPU and ZANU, established by members of both groups who had become disaffected due to their rival organisations' incessant internal and external disputes. <P2-S3>  Its domination by members of the Zezuru, a subgroup of the Shona people, led to accusations that it was merely a tribal grouping and ridicule as the "Front for the Liaison of Zezuru Intellectuals". <SEP> <P3-S0> The Victoria Falls Conference took place on 26 August 1975 aboard a South African Railways train halfway across the Victoria Falls Bridge on the border between the unrecognised state of Rhodesia (today Zimbabwe) and Zambia. <P3-S1>  It was the culmination of the "détente" policy introduced and championed by B. J. Vorster, the Prime Minister of South Africa, which was then under apartheid and was attempting to improve its relations with the Frontline States to Rhodesia's north, west and east by helping to produce a settlement in Rhodesia. <P3-S2>  The participants in the conference were a delegation led by the Rhodesian Prime Minister Ian Smith on behalf of his government, and a nationalist delegation attending under the banner of Abel Muzorewa's African National Council (UANC), which for this conference also incorporated delegates from the Zimbabwe African National Union (ZANU), the Zimbabwe African People's Union (ZAPU) and the Front for the Liberation of Zimbabwe (FROLIZI). <P3-S3>  Vorster and the Zambian President Kenneth Kaunda acted as mediators in the conference, which was held on the border in an attempt to provide a venue both sides would accept as neutral.