Mercenary
The word "bunt" itself translates to warrior or mercenary, this community later elevated itself as the rulers of the land, several powerful dynasties emerged from this community. The most notable dynasty being the Alupas of Dakshina Kannada, which reigned for 1,300 years. This community still survives and has adopted the surnames shetty, Rai, Alva, chowta etc. In Tamil Nadu, the three crowned empires used the Kongar pastro-peasantry tribes of the Kongunad region and the Kongar peasant tribes of the Erumainad region as their swordsman mercenaries, cavalry mercenaries, and as chariot soldier mercenaries, as well as personal guards. Kongars worked along with the three empires' warrior tribes such as the Kallar, Maravar, Aghamudaiyar, Parkavar, Valaiya-Mutharaiyar, and Mazhavar tribes. During that time, these Kongar tribes were led only by the chiefs of their own tribe and would not come under the command of the emperor or his military general. Though these Kongar tribes of Kongunad were feudatories to the three crowned empires, Kongunad was divided into 24 subdivisions and was only ruled by Kongars. However, the Kongars (Gangars) of Erumainad established their own empire, the Western Ganga dynasty, and ruled over it for centuries. Kongar tribes still exist in the modern world, where they are referred as Kongu Vellala Gounder (Kongunadu) and Gangadhikar Vokkaliga Gowda (Erumainad).
The Mukkuvar clan of Malabar Coast and Sri Lankan coast did the role of soldiers in Kalinga Magha's invasion to Sri Lanka and in Nair's battle with the Dutch in the Battle of Colachel.
In the 18th and early 19th centuries, the imperial Mughal power was crumbling and other powers, including the Sikh Misls and Maratha chiefs, were emerging. At this time, a number of mercenaries, arriving from several countries found employment in India. Some of the mercenaries emerged to become independent rulers. The Sikh Maharaja, Ranjit Singh, known as the "Lion of the Punjab", employed Euro-American mercenaries such as the Neapolitan Paolo Avitabile; the Frenchmen Claude Auguste Court and Jean-François Allard; and the Americans Josiah Harlan and Alexander Gardner. The Sikh army, Dal Khalsa, was trained by Singh's French mercenaries to fight alone the lines used by the French in the Napoleonic era, and following French practice, Dal Khalsa had excellent artillery. Singh had a low opinion of his Euro-American mercenaries, once saying "German, French or English, all these European bastards are alike".
Until 1858, India was a proprietary colony that belonged to the East India Company, not the British Crown. The East India Company became the world's most influential corporation, having exclusive monopolies on trade with India and China. By the early 19th century, the East India Company in its proprietary colony of India ruled over 90 million Indians and controlled 70 million acres (280,000 km2) of land under its own flag, issued its own currency and maintained its own civil service and its own army of 200,000 men led by officers trained at its officer school, giving the company an army larger than that possessed by most European states. In the 17th century, the East India Company recruited Indian mercenaries to guard its warehouses and police the cities under its rule. However, these forces were ad hoc and disbanded as quickly as they were recruited.
Starting in 1746, the Company recruited Indian mercenaries into its own army. By 1765, the board of directors of the Company had come to accept it was necessary to rule its conquests to maintain a standing army, voting to maintain three presidency armies to be funded by taxes on Indian land. The number of Indians working for the Company's armies outnumbered the Europeans ten to one. When recruiting, the East India Company tended to follow Indian prejudices in believing the pale-skinned men from northern India made for better soldiers than the dark-skinned peoples of southern India, and that high-caste Hindus were superior to the low-caste Hindus. Despite these prejudices, the men of the Madras Army were from south India. The Bengal Army were largely high-cast Hindus from northern India while the Bombay Army prided itself on being a "melting pot".
Because the East India Company ultimately by the end of the 18th century came to offer higher pay than the Maharajahs did, and offered the novelty in India of paying a pension to veterans and their families, it came to attract the best of the Indian mercenaries. Initially, the mercenaries serving in the company's armies brought along their own weapons, which was the normal practice in India, but after the 1760s the company began to them arm with the standard British weapons. The East India Company, generally known in both Britain and in India as "the Company", had sufficient lobbying power in London to ensure that several British Army regiments were also stationed to work alongside the Company army, whose troops were mostly "Sepoys" (Indians). The Company never entirely trusted the loyalty of its sepoys. The company had its own officer training school at the Addiscombe Military Seminary. The company's armies were trained in the Western style and by the end of the 18th century its troops were ranked as the equal of any European army.

Latin America: 

Nicaragua: In 1855, during a civil war in Nicaragua between the Conservatives and Liberals, the latter recruited an American adventurer named William Walker who promised to bring 300 mercenaries to fight for the Liberals. Through Walker only brought 60 mercenaries with him, to be joined by another 100 Americans together with the Belgian mercenary Charles Frederick Henningsen who were already in Nicaragua, he was able to defeat the Conservatives at the Battle of La Virgen on 4 September 1855 and by 13 October, Walker had taken Grenada, the Conservative capital. After his victories, Walker became the de facto dictator of Nicaragua, which many both inside and outside of the country soon started to call "Walkeragua".
At the time, Nicaragua was an extremely important transit point between the Western and Eastern United States. In the days before the Panama Canal and the first transcontinental railroad, ships from the Eastern United States would sail up the San Juan River to Lake Nicaragua, where passengers and goods were unloaded at the port of Rivas and then made the short journey via stagecoach to the Pacific coast, to be loaded onto ships that would take them to the west coast of the United States. One of the most important companies of the Nicaraguan stagecoach business was the Accessory Transit Company owned by Commodore Cornelius Vanderbilt of New York. Walker confiscated the Accessory Transit Company's assets in Nicaragua, which he handed over to the Morgan & Garrison company, owned by rivals of Vanderbilt. As Vanderbilt happened to be the richest man in the United States, he launched a lobbying campaign against Walker in Washington, D.C., and was able to pressure President Franklin Pierce into withdrawing American recognition of Walker's regime.
Once it was understood that the US government was no longer supporting Walker, Costa Rica invaded Nicaragua with the aim of deposing Walker, whose ambitions were felt to be a threat to all of Central America. The Costa Ricans defeated Walker at the Battle of Santa Rosa and the Second Battle of Rivas. The beleaguered Walker sought to appeal to support in his native South by restoring slavery in Nicaragua, making English the official language, changing the immigration law to favor Americans, and declaring his ultimate intention was to bring Nicaragua into the United States as a slave state. By this point, Walker had thoroughly alienated public opinion in Nicaragua while he was besieged in Grenada by a coalition of Guatemalan, Salvadorian, and Costa Rican troops. The decision by Henningsen to burn down Grenada enraged Nicaraguan people and in March 1857, Walker, with his dreams of an empire in tatters, fled Nicaragua.
In the 1980s, one of the Reagan administration's foreign policy was to overthrow the left-wing Sandinista government by arming guerrillas known as the Contras. Between 1982 and 1984, Congress passed the three Boland amendments which limited the extent of American aid to the Contra rebels. By the late 1970s, the popularity of magazines such as Soldier of Fortune, which glorified the mercenary subculture, led to the opening of numerous camps in the United States designed to train men to be mercenaries and also to serve as guerrillas in case of a Soviet conquest of the United States. The vast majority of the men who trained in these camps were white men who saw para-military training as a "reverse the previous twenty years of American history and take back all the symbolic territory that has been lost" as the possibility of becoming mercenaries gave them "the fantastic possibility of escaping their present lives, being reborn as warrior and remaking the world".
Owing to the legal problems posed by the Boland amendments, the Reagan administration turned to the self-proclaimed mercenaries to arm and train the Contra guerrillas. In 1984, the CIA created the Civilian Military Assistance (CMA) group to aid the Contras. The CMA were led by a white supremacist from Alabama named Tom Posey, who like all of the other members of the CMA were graduates of the mercenary training camps.