National unity government disasters or wars, that the two parties have briefly "rallied around the President." Such instances include the attack on Pearl Harbor, the assassination of John F. Kennedy, and the September 11 attacks, all of which not only had a worldwide effect, but preceded a massive spike in the approval rating of the sitting President. The 2008–2009 Zimbabwean political negotiations between the opposition Movement for Democratic Change (led by Morgan Tsvangirai), its small splinter group, the Movement for Democratic Change – Mutambara (led by Arthur Mutambara), and the ruling Zimbabwe African National Union – Patriotic Front (led by Robert Mugabe) created
Robert Mugabe at least three of these have since been revoked. In June 2007, he became the first international figure ever to be stripped of an honorary degree by a British university, when the University of Edinburgh withdrew the degree awarded to him in 1984. On 12 June 2008, the University of Massachusetts Amherst Board of Trustees voted to revoke the law degree awarded to Mugabe in 1986; this is the first time one of its honorary degrees has been revoked. Robert Mugabe Robert Gabriel Mugabe (; ; born 21 February 1924) is a Zimbabwean revolutionary and politician who served as Prime