As Zimbabwe's economy has gone from bad to worse to disastrous in recent years, Robert Mugabe's political and physical demise has been predicted many times but he has always confounded his many critics - until now.
However, it may be that by siding with his wife in the battle to succeed him, he has gone too far, and lost the support of the military leaders, who have kept him in power until now.
At the age of 93, his health has visibly deteriorated over the past year or so, even though he was still officially going to seek re-election next year.
Before the 2008 elections, he said: "If you lose an election and are rejected by the people, it is time to leave politics."
But after coming second to Morgan Tsvangirai, Mr Mugabe displayed more characteristic defiance, swearing that "only God" could remove him from office.
And just to be sure, violence was unleashed to preserve his grip on power.
In order to protect his supporters, Mr Tsvangirai pulled out of the second round and although Mr Mugabe was forced to share power with his long-time rival for four years, he remains president of the country he has governed since 1980.
The key to understanding Mr Mugabe is the 1970s guerrilla war where he made his name.
Robert Mugabe - Timeline
Image copyrightAFP- 1924: Born
- Trained as a teacher
- 1964: Imprisoned by Rhodesian government
- 1980: Wins post-independence elections
- 1996: Marries Grace Marufu
- 2000: Loses referendum, pro-Mugabe militias invade white-owned farms and attack opposition supporters
- 2008: Comes second in first round of elections to Tsvangirai who pulls out of run-off amid attacks on his supporters
- 2009: Amid economic collapse, swears in Tsvangirai as prime minister
- 2016: Bond notes introduced as cash shortage worsens
- 2017: Sacks long-time ally Vice-President Emmerson Mnangagwa
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At the time, he was seen as a revolutionary hero, fighting white minority rule for the freedom of his people - this is why many African leaders remain reluctant to criticise him.
Since Zimbabwe's independence, most of the world has moved on - but his outlook remains the same.
Image copyrightGETTY IMAGES
The heroic socialist forces of Zanu-PF are still fighting the twin evils of capitalism and colonialism.
Any critics have been dismissed as "traitors and sell-outs" - a throwback to the guerrilla war, when such labels could be a death sentence.
He has always blamed Zimbabwe's economic problems on a plot by Western countries, led by the UK, to oust him because of his seizure of white-owned farms.
His critics firmly blame him, saying he has shown no understanding of how a modern economy works.
He has always concentrated on the question of how to share the national cake, rather than how to make it grow bigger.
Image copyrightAFP
Mr Mugabe once famously said that a country could never go bankrupt - with the world's fastest-shrinking economy and annual inflation of 231 million per cent in July 2008, it seemed as though he was determined to test his theory to the limit.
Professor Tony Hawkins of the University of Zimbabwe once observed that with Zimbabwe's leader: "Whenever economics gets in the way of politics, politics wins every time."
In 2000, faced with a strong opposition for the first time, he wrecked what was one of Africa's most diversified economies in a bid to retain political control.
He seized the white-owned farms which were the economy's backbone and scared off donors but in purely political terms, Mr Mugabe outsmarted his enemies - he remained in power.
At any cost
And the tactics he and his supporters used were straight from the guerrilla war.
After he suffered the first electoral defeat of his career, in a 2000 referendum, Mr Mugabe unleashed his personal militia - the self-styled war veterans, backed by the security forces - who used violence and murder as an electoral strategy.
Image copyrightAFP
Eight years later, a similar pattern was followed after Mr Mugabe lost the first round of a presidential election to his long-time rival Morgan Tsvangirai.
When needed, all the levers of state - the security forces, civil service, state-owned media - which are mostly controlled by Zanu-PF members, were used in the service of the ruling party.
The man who fought for one-man, one-vote introduced a requirement that potential voters prove their residence with utility bills, which the young, unemployed opposition core electorate were unlikely to have.
In fact, the signs of his attitude to opposition were there from the early 1980s, when members of the North-Korea trained Fifth Brigade of the army were sent to Matabeleland, home to his then rival, Joshua Nkomo.
Thousands of civilians were killed before Mr Nkomo agreed to share power with Mr Mugabe - a precursor of what happened with Mr Tsvangirai.
One of the undoubted achievements of the former teacher's 33 years in power was the expansion of education. Zimbabwe recently had the highest literacy rate in Africa at 90% of the population.
The now deceased political scientist Masipula Sithole once said that by expanding education, the president was "digging his own grave".
The young beneficiaries were able to analyse Zimbabwe's problems for themselves and most blamed government corruption and mismanagement for the lack of jobs and rising prices.
Cartoon figure
Mr Mugabe may well believe it would be easier to rule a country of subservient subsistence farmers than a well-educated, industrialised workforce.
He claims to be fighting on behalf of the rural poor but much of the land he confiscated has ended up in the hands of his cronies.
Image copyrightAFP
Archbishop Desmond Tutu once said that Zimbabwe's long-time president had become a cartoon figure of the archetypal African dictator.
During the 2002 presidential campaign, he started wearing brightly coloured shirts emblazoned with his face - a style copied from many of Africa's authoritarian rulers.
For the preceding 20 years, this conservative man was only seen in public with either a stiff suit and tie or safari suit.
Many Zimbabweans, and others, were left asking why he did not just put his feet up and enjoy his remaining years with his young family.
Image copyrightAFP
His second wife, Grace, 40 years his junior, once said that he woke up at 04:00 for his daily exercises.
Mr Mugabe was 73 when she gave birth to their third child, Chatunga.
He professes to be a staunch Catholic, and worshippers at Harare's Catholic Cathedral were occasionally swamped by security guards when he turned up for Sunday Mass.
However, Mr Mugabe's beliefs did not prevent him from having two children by Grace, then his secretary, while his popular Ghanaian first wife, Sally, was dying from cancer.
'King'
Although Mr Mugabe outlived many predictions of his demise, the increasing strain of recent years has obviously taken its toll and his once-impeccable presentation now looks rather worn at times.
In 2011, a US diplomatic cable released by Wikileaks suggested that he was suffering from prostate cancer.
Image copyrightAFP
If nothing else, Mr Mugabe has always been an extremely proud man.
He has often said he would only step down when his "revolution" was complete.
This meant the redistribution of white-owned land but he also wanted to hand-pick his successor, who would of course have to come from the ranks of his Zanu-PF party.
There have occasionally been widespread predictions that either Zanu-PF or Zimbabwe's neighbours would finally stand up to Mr Mugabe but in the event, both groups remained loyal to him for many years.
Didymus Mutasa, once one of Mr Mugabe's closest associates but who has now fallen out with him, once told the BBC that in Zimbabwean culture, kings were only replaced when they die "and Mugabe is our king".
But it seems as though some of his former allies were not ready for a dynasty.
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