Zimbabwean President Robert Mugabe speaks at an election rally in Bindura, 80 Km's north of the capital, April 7, 2000. Mugabe vowed to fight the country's white farmers for access to their land and accused the farmers of bankrolling the new opposition party the Movement for Democratic Change (MDC).

Zimbabwe's President Robert Mugabe (C), Mozambique's President Armando Guebuza (2nd L red tie), Swaziland's King Mswati III (L red and white tie) and Congo's President Joseph Kabila (behind Guebuza) arrive with other regional leaders for a summit of the 15-nation Southern African Development Community (SADC) in Mozambique's capital Maputo August 17, 2012.

Zimbabwe President Robert Mugabe attends a university graduation ceremony in Harare, Zimbabwe, November 17, 2017.

President Robert Mugabe and his wife Grace attend the burial of two independence luminaries, Maud Muzenda and George Rutanhire, in Harare, Zimbabwe August 26,2017.

President Robert Mugabe of Zimbabwe (R) holds hands with his South African counterpart Nelson Mandela greeting him on his arrival in the country December 13. Mandela was here to address the 8th Assembly of the World Council of Churches which ends December 14.

U.S. First Lady Hillary Clinton (C) is escorted by Zimbabwe's President Robert Mugabe (R) and his wife Grace Mugabe after she arrived at the presidential palace in Harare March 21, 1997. Mrs. Clinton is on a six -nation goodwill tour through Africa with her daughter Chelsea.

Zimbabwe's President Robert Mugabe looks on during a rally marking Zimbabwe's 32nd independence anniversary celebrations in Harare April 18, 2012.

Russian President Vladimir Putin (R) meets with his Zimbabwean counterpart Robert Mugabe at the Kremlin in Moscow, Russia, May 10, 2015.

Zimbabwe President Robert Mugabe talks with U.S. civil rights leader Rev. Jesse Jackson July 25, 1997 at the last plenary session of the African-American Summit. The conference hopes to improve business between the United States and Africa.

Zimbabwe's President Robert Mugabe (seated) waits to address the 66th United Nations General Assembly at the U.N. headquarters in New York September 22, 2011.

Zimbabwe President Robert Mugabe, followed by Police Commissioner Augustine Chihuri, inspects troops outside Parliament July 23, 2002. Mugabe opened the third session of the fifth parliament following disputed Presidential elections in March.

Zimbabwe's President Robert Mugabe speaks to journalists outside Parliament in Harare December 4, 2007. Mugabe said on Tuesday British efforts to isolate Zimbabwe were crumbling after London failed to have him excluded from an EU-Africa summit.

Zimbabwe's President Robert Mugabe addresses the ZANU-PF party's top decision making body, the Politburo, in the capital Harare, February 10, 2016.

President Robert Mugabe and new wife Grace leave the Kutama Catholic Church August 17, 1996 after exchaning their wedding vows. The couple were traditionally married shortly after the death of Mugabe's first wife Sally. The ceremony was attended by six thousand invited guests.

Zimbabwean President Robert Mugabe participates in a discussion at the World Economic Forum on Africa 2017 meeting in Durban, South Africa May 4, 2017.

Zimbabwe's President Robert Mugabe addresses the inaugural session of the World Summit on Information Society in Geneva, Switzerland, December 10, 2003.

Zimbabwe's President Robert Mugabe reads a card during his 93rd birthday celebrations in Harare, Zimbabwe, February 21, 2017.

Zimbabwe President Robert Mugabe (L) speaks to his wife Grace during the funeral of his sister, Bridget, in the village of Zvimba, 90 km (55 miles) west of Harare January 21 2014. Mugabe attributed his long life to God's will but shied away from commenting on his health on Tuesday, a day after scotching rumours he was sick by appearing in public for the first time in several weeks. Mugabe, who has ruled the former British colony since independence in 1980, turns 90 in exactly a month, making his state of health the hottest topic for Zimbabwe's 13 million people and its ruling ZANU-PF party.

Zimbabwe President Robert Mugabe addresses supporters during celebrations to mark his 90th birthday in Marondera about 80km ( 50 miles) east of the capital Harare, February 23, 2014.

Zimbabwe's President Robert Mugabe sleeps during the speech of Libya's leader Muammar Gaddafi at the start of the third European Union-Africa summit in Tripoli November 29, 2010. Gaddafi warned the European Union on Monday that Africa would turn to other trade partners if the EU kept trying to dictate to the continent how it should develop.

President's Nelson Mandela of South Africa (L) and Robert Mugabe of Zimbabwe talk together May 21, 1997 as he was leaving the country after a three day state visit. Mandela opened a World Economic Forum on the southern African region to improve investment and trade within the region.

Zimbabwe President Robert Mugabe arrives with his wife Grace for an election rally in Madziwa, a village north of Harare June 21, 2000. Mugabe was quoted as saying Britain and the United States were trying to discredit his government and warned that any sanctions would hit foreign firms hardest. He said London and Washington had launched a campaign against his plan to seize 804 white-owned farms for redistribution to landless blacks.

Zimbabwe President Robert Mugabe (L) and his wife Grace (R) greet supporters at a national Heroes Day rally in Harare, August 11, 2014.

Zimbabwe President Robert Mugabe is kissed by his wife Grace at his 80th birthday party in his home area of Zvimba, 80kms west of Harare February 21, 2004. Mugabe celebrated his 80th birthday on Saturday, a day after indicating that he would retire within five years, amid a deepening political and economic crisis.

President Robert Mugabe listens to his wife Grace Mugabe at a rally of his ruling ZANU-PF party in Harare, Zimbabwe, November 8, 2017.

President of the Republic of Zimbabwe Robert Mugabe addresses at the 63rd United Nations General Assembly at U.N. headquarters in New York September 25, 2008.

Zimbabwe's President Robert Mugabe looks on before casting his vote in Highfields outside Harare July 31, 2013.

The Princess of Wales talks to Zimbabwean President Robert Mugabe when she paid a courtesy visit at Harare's State house, July 10, 1993. Princess Diana is on a four-day visit to Zimbabwe and will visit welfare projects and a Mozambican refugee camp.

Zimbabwe's President Robert Mugabe greets the crowd at his final election rally in this town, 100 kms west of Harare April 7, 1995. Zimbabwe's weekend general elections, already won in advance by Mugabe's ruling party ZANU-PF, are being watched for voter turnout to assess political popularity.

French President Jacques Chirac (R) greets Zimbabwe's President Robert Gabriel Mugabe (L) at the Elysee Palace, October 28. [Mugabe is in Paris where he attended the 30th session of UNESCO's General Conference.

Zimbabwe's President Robert Mugabe clasps the FIFA soccer World Cup trophy at Harare International Airport November 26, 2009. The trophy is on an 86 country 225 day world tour before it arrives in the host country South Africa for the 2010 tournament.

Zimbabwe's President Robert Mugabe attends the opening speech of the high-level segment of the UN Climate Change Conference 2009 in Copenhagen December 15, 2009.

Zimbabwe's President Robert Mugabe arrives for the burial of ZANU (PF) member Edson Ncube in Harare May 4, 2012. Mugabe was forced into a power-sharing deal with his rival and now Prime Minister Morgan Tsvangirai, leader of the Movement for Democratic Change, after a disputed 2008 poll which Western powers said was marred by ZANU-PF violence and intimidation. Under the terms of the deal, elections must be held by next year.

Libyan leader Colonel Muammar Gadaffi (L) and Zimbabwe President Robert Mugabe greet supporters outside State House in Harare July 12, 2001. The Libyan leader is in the country on a two day visit after driving from Lusaka, Zambia following the final meeting of the Organisation of African Unity (OAU).

Zimbabwe's former president Robert Mugabe casts his ballot in the general elections in Harare, Zimbabwe, July 30, 2018.

Zimbabwean President Robert Mugabe watches a video presentation during the summit of the Southern African Development Community (SADC) in Johannesburg, August 17, 2008. Zimbabwe's ruling party and the main opposition have not yet reached a power-sharing agreement, an opposition spokesman said on Sunday.

Zimbabwe's President Robert Mugabe sits before their EU-Africa summit in Lisbon, December 8, 2007. European and African leaders will seek to forge a fresh partnership to tackle issues like trade, immigration and peacekeeping this week when they hold their first summit in seven years.

Zimbabwe President Robert Mugabe lights the independence flame during the 29th Independence Celebrations at the National Stadium in Harare, April 18, 2009. Mugabe and his rival, Prime Minister Morgan Tsvangirai, celebrated independence from Britain together for the first time on Saturday, a possible sign that political tensions are easing.

Zimbabwe President Robert Mugabe (R) greets his Palestinian counterpart Yasser Arafat upon his arrival in the capital to attend the World Solar Summit September 15, 1996. The international conference called to drum up political support for the use and developments of solar and other renewable sources of energy opens in Zimbabwe on Monday. The two-day summit has attracted only a handful of heads of state and governments.

Cuban President Fidel Castro (R) and Zimbabwe's President Robert Mugabe stand at attention during an arrival ceremony at the Palace of the Revolution in Havana September 18, 1999. Mugabe and Castro will hold official talks and sign several bilateral agreements before Mugabe departs for New York City on September 19 to attend meetings of the United Nations General Assembly.

Zimbabwe President Robert Mugabe inspects troops at the opening of Parliament July 20, 2000. The fifth Parliament since independence in 1980 sees the largest opposition to Mugabe's ZANU (PF) with the Movement for Democratic Change holding 57 of the 150 seat chamber.