Mercenary
The Comoros coup: A major aim of French foreign policy was and still is to maintain the French sphere of influence in what is called Françafrique. In 1975, Ali Soilih took power in the Comoros via a coup, and proved unwilling to accept the French viewpoint that his nation was part of Françafrique. Unhappy with Soilih, the French secret service, the Service de Documentation Extérieure et de Contre-Espionnage in 1978 hired the French mercenary Bob Denard to invade the Comoros to overthrow Soilih. Making the Comoros a tempting target for Denard were its small size, consisting of only three islands in the Indian Ocean. Moreover, Soilih had abolished the Comorian Army, replacing the Army with a militia known as the Moissy, made up mostly of teenage boys with only the most rudimentary military training. The Moissy, which was modeled after the Red Guard in China, existed mainly to terrorize Soilih's opponents and was commanded by a 15-year-old boy, appointed solely because of his blind devotion to Soilih.
On the night of 13 May 1978, Denard and 42 other mercenaries landed on Grande Comore island, annihilated the poorly trained and badly commanded Moissy, none of whom had any military experience, and by the morning the Comoros was theirs. President Soilih was high on marijuana and naked in his bed together with three nude teenage schoolgirls watching a pornographic film, when Denard kicked in the door to his room to inform him that he was no longer president. Soilih was later taken out and shot with the official excuse being that he was "shot while trying to escape". The new president of the Comoros, Ahmed Abdallah, was a puppet leader and the real ruler of the Comoros was Colonel Denard, who brought the Comoros back into Françafrique.
As a ruler, Denard proved himself to be extremely greedy as he rapaciously plundered the Comorian economy to make himself into a very rich man. Denard served as the commander of the Comorian Presidential Guard and became the largest single landowner in the Comoros, developing the best land by the sea into luxury resorts catering to tourists who wanted to enjoy the tropics. Denard converted to Islam (the prevailing religion in the Comoros), and took advantage of the Islamic rules on polygamy to maintain for himself a harem of Comorian women. Officially, France was committed to the United Nations sanctions against the apartheid government of South Africa, which French and South African businesses circumvented via the Comoros, a form of sanctions-busting that was tolerated by Denard as long as he received his cut of the profits.
Ultimately, Denard's antics as the "great white conqueror" of the Comoros and his lavish lifestyle made him into embarrassment for the French government, as there were charges that France was engaged in neo-colonialism in the Comoros. At the same time there were alternatives to Denard in the form of black Comorian politicians who wanted Denard out, but were willing to keep the Comoros in Françafrique, which would allowed Paris to achieve its aims without the embarrassment of a white European exploiting a country inhabited by black Africans. When Abdallah tried to dismiss Denard as commander of the Presidential Guard, Denard had him assassinated on 26 November 1989. At that point, the French government, which had an alternative leadership in place, intervened by sending paratroopers to remove Denard and the other mercenaries from the Comoros while installing Said Mohamed Djohar as president.
On 28 September 1995, Denard again invaded the Comoros, but this time, Paris was against the invasion, and 600 paratroops were dispatched to the Comoros to usher Denard and his mercenaries out. Denard was charged in France with the murder of President Abdallah, but was acquitted owing to a lack of evidence. In 2006, he was found guilty of conspiracy to overthrow the government of the Comoros in 1995, but by this point Denard was suffering from Alzheimer's disease and he did not serve a day in prison, instead dying in a Paris hospital on 13 October 2007.

The Seychelles invasion: In 1981, "Mad Mike" Hoare was hired by the government of South Africa to lead an invasion of the Seychelles with the aim of deposing the left-wing President France-Albert René, who had roundly criticized apartheid, and replacing him with a more apartheid-friendly leader. Disguised as a drinking club, Ye Ancient Order of Froth-Blowers, and as rugby players, Hoare led a force of 53 men into the airport at Port Larue on 25 November 1981. Hoare's men failed to make it past the customs at the airport as an alert customs officer noticed one of the "rugby players" had an AK-47 assault rifle hidden in his luggage. What followed was a shoot-out at the airport between Hoare's men and Seychellois customs officers. Realizing the invasion was doomed, Hoare and his men escaped by hijacking an Air India jet which flew them back to South Africa. The fiasco of the Seychelles invasion marked the beginning of the decline of the traditional soldier of fortune, centered around a charismatic figure like Hoare or Denard, and a change over to the corporatized private military company, run by men who shunned the limelight.

Eritrea and Ethiopia: Both sides hired mercenaries in the Eritrean–Ethiopian War from 1998 to 2000. Russian mercenaries were believed to be flying in the air forces of both sides.

Sierra Leone: American Robert C. MacKenzie was killed in the Malal Hills in February 1995, while commanding Gurkha Security Guards (GSG) in Sierra Leone. GSG pulled out soon afterwards and was replaced by Executive Outcomes. Both were employed by the Sierra Leone government as military advisers and to train the government soldiers. It has been alleged that the firms provided soldiers who took an active part in the fighting against the Revolutionary United Front (RUF).
In 2000, the Australian Broadcasting Corporation's (ABC-TV) international affairs program Foreign Correspondent broadcast a special report "Sierra Leone: Soldiers of Fortune", focusing on former 32BN and Recce members who operated in Sierra Leone while serving for SANDF. Officers like De Jesus Antonio, TT D Abreu Capt Ndume and Da Costa were the forefront because of their combat and language skills and also the exploits of South African pilot Neall Ellis and his MI-24 Hind gunship. The report also investigated the failures of the UN Peacekeeping Force, and the involvement of mercenaries and private military contractors in providing vital support to UN operations and British military Special Operations in Sierra Leone in 1999–2000.

Equatorial Guinea: In August 2004 there was a plot, which later became known as the "Wonga Coup", to overthrow the government of Equatorial Guinea in Malabo. Currently eight South African apartheid-era soldiers, organised by Neves Matias (former Recce major and De Jesus Antonio former Captain in 2sai BN) with (the leader of whom is Nick du Toit) and five local men are in Black Beach prison on the island. They are accused of being an advanced guard for a coup to place Severo Moto in power. Six Armenian aircrew, also convicted of involvement in the plot, were released in 2004 after receiving a presidential pardon. CNN reported on 25 August, that:

Defendant Nick du Toit said he was introduced to Thatcher in South Africa last year by Simon Mann, the leader of 70 men arrested in Zimbabwe in March suspected of being a group of mercenaries heading to Equatorial Guinea.
It was planned, allegedly, by Simon Mann, a former SAS officer. On 27 August 2004 he was found guilty in Zimbabwe of purchasing arms, allegedly for use in the plot (he admitted trying to procure dangerous weapons, but said that they were to guard a diamond mine in DR Congo). It is alleged that there is a paper trail from him which implicates Sir Mark Thatcher, Lord Archer and Ely Calil (a Lebanese-British oil trader).
The BBC reported in an article entitled "Q&A: Equatorial Guinea coup plot":

The BBC's Newsnight television programme saw the financial records of Simon Mann's companies showing large payments to Nick du Toit and also some $2m coming in – though the source of this funding they say is largely untraceable.
The BBC reported on 10 September 2004 that in Zimbabwe:

[Simon Mann], the British leader of a group of 67 alleged mercenaries accused of plotting a coup in Equatorial Guinea has been sentenced to seven years in jail... The other passengers got 12 months in jail for breaking immigration laws while the two pilots got 16 months...The court also ordered the seizure of Mann's $3m Boeing 727 and $180,000 found on board.

Libya: Muammar Gaddafi in Libya was alleged to have been using mercenary soldiers during the 2011 Libyan civil war, including Tuaregs from various nations in Africa. Many of them had been part of his Islamic Legion created in 1972. Reports say around 800 had been recruited from Niger, Mali, Algeria, Ghana and Burkina Faso. In addition, small numbers of Eastern European mercenaries have also turned up supporting the Gaddafi regime.