List all the countries in the world that forgot in 7 years war. which country gained the most territory

India, britian, prussia, austria, russia, and france.

Britain gained the most territory

The war ended France's position as a major colonial power in the Americas (where it lost most of its possessions on the mainland of North America, in addition to some West Indian islands) and its position as the leading power in Europe,[3] until the time of the French Revolution. Great Britain, meanwhile, emerged as the dominant colonial power in the world.