If you refer to 1910 british victory against afrikaners (permanent settlers in South Africa of dutch origins), than it's south Africa.
No, India gained its independence in 1947 and is now a sovereign nation.
In 1858, The British government was handed India after a series of revolts. The addition of India to the British empire brought large amounts of wealth to the nation. During other takeovers, Britain gained control over China as well.
The British Empire colonized the nation we now call Guyana. It was called British Guiana until the nation gained its independence in 1966.
The United States owned and took control of Louisiana by 1803.
Mauritius is an independent island nation; a sovereign state. The people of Mauritius are Mauritians. At one time Mauritius was under the control of the British, but it gained independence in 1968.
Canada
France was defeated.
The United States of America was in control of the Philippines, in 1900. The United States won control of the Philippines from the Spanish in 1898.
Australia is the largest former British colony south of the equator. It gained independence from Britain in 1901 and is now a sovereign nation.
Portugal gained control of Brazil through the Treaty of Tordesillas. The Portuguese, along with help from native Brazilians, were able to keep out French and Dutch invaders.
Ghana, located in West Africa, was called The Gold Coast. Ghana was a British colony from 1821 to 1957, when it gained its independence.
Well, there were two well known cases of this. One was the Zulu, a fierce people who defeated the British by simply having more warriors. The other is the Ethiopians, who were a rich trading nation, able to afford modern weapons. They defeated the Europeans with their own technology.