See: King Moshoeshoe II

[2013 April] British peer reveals MI6 role in Lumumba killing

[vid] Apologies Of An Economic Hitman | Full Documentary by JOHN PERKINS  (9-1`5-11)Working for an NSA sub-contractor (cut-out), John Perkins was a member of the secret team of "economic hit men", agents of multinational coporations as well as the IMF and World Bank, who used fraudulent financial reports, rigged elections, payoffs, extortion, sex, military coups and murder to create the global American empire after World War II. After a long internal struggle between his guilt and the fear of telling the truth, Perkins meets the daughter of an assassinated president and speaks out in front of an angry audience in Ecuador, one of the scenes of Perkins' crimes.

[2010 Oct] The Anti-Empire Report by William Blum  New evidence has recently come to light that reinforces the view of a CIA role in the murder of Patrice Lumumba, the first prime minister of The Congo following its independence from Belgium in 1960. The United States didn't pull the trigger, but it did just about everything else, including giving the green light to the Congolese officials who had kidnaped Lumumba. CIA Station Chief Larry Devlin, we now know, was consulted by these officials about the transfer of Lumumba to his sworn enemies. Devlin signaled them that he had no objection to it. Lumumba's fate was sealed.
...We can't know for sure what life for the Congolese people would have been like had Lumumba been allowed to remain in office. But we do know what followed his assassination — one vicious dictator after another presiding over 50 years of mass murder, rape, and destruction as competing national forces and neighboring states fought endlessly over the vast mineral wealth in the country. The Congo would not hold another democratic election for 46 years.
    Overthrowing a country's last great hope, with disastrous consequences, is an historical pattern found throughout the long chronicle of American imperialist interventions, from Iran and Guatemala in the 1950s to Haiti and Afghanistan in the 1990s, with many examples in between. Washington has been working on Hugo Chávez in Venezuela for a decade.