Newly disclosed papers show that the UK's diplomatic corps cautioned against British military intervention to overthrow the former Zimbabwean president, the long-serving leader, in 2004, stating it was not considered a "serious option".
Internal documents from Tony Blair's government indicate officials considered options on how best to deal with the "remarkably robust" 80-year-old dictator, who refused to step down as the country fell into violence and economic chaos.
Faced with the ruling party winning a 2005 election, and a year after the UK joined a US-led coalition to overthrow Iraqi leader Saddam Hussein, Downing Street asked the Foreign Office in July 2004 to develop potential options.
Diplomats concluded that the UK's strategy to isolate Mugabe and forging an international consensus for change was failing, having failed to secure support from key African nations, notably the then South African president, Thabo Mbeki.
Courses considered in the files were:
"We know from conflicts abroad that changing a government and/or its bad policies is exceedingly difficult from the outside."
The diplomatic assessment dismissed military action as not a "serious option," adding that "The only candidate for leading such a armed intervention is the UK. No other country (even the US) would be prepared to do so".
It warned that military involvement would cause significant losses and have "serious consequences" for British people in Zimbabwe.
"Short of a severe human and political catastrophe – resulting in massive violence, large-scale refugee flows, and instability in the region – we assess that no African state would support any efforts to remove Mugabe forcibly."
The paper adds: "We also believe that any other European, Commonwealth or western partner (including the US) would authorise or join military intervention. And there would be no jurisdictional basis for doing so, without an authorising Security Council Resolution, which we would fail to obtain."
The Prime Minister's advisor, Laurie Lee, warned him that Zimbabwe "will be a real spoiler" to his plan to use the UK's leadership of the G8 to make 2005 "the year of Africa". The adviser stated that as military action had been ruled out, "we probably have to accept that we must play the longer game" and re-engage with Mugabe.
Blair seemed to concur, writing: "We should work out a way of revealing the lies and malpractice of Mugabe and Zanu-PF ahead of this election and then subsequently, we could attempt to restart dialogue on the basis of a firm agreement."
The departing ambassador, in his valedictory telegram, had advocated cautious renewed contact with Mugabe, though he recognized the Prime Minister "would likely be appalled given all that Mugabe has said and done".
The Zimbabwean leader was finally deposed in a military takeover in 2017, aged 93. Previous claims that in the early 2000s Blair had tried to pressure the South African president into joining a military coalition to depose Mugabe were strongly denied by the former UK premier.
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