The Seven Years' War (1756-1763) involved all of the major European powers of the period, causing 900,000 to 1,400,000 deaths.It enveloped both European and colonial theatres from 1756 to 1763, incorporating the Pomeranian War and the French and Indian War which was fought from 1754 to 1763. Prussia, Electorate Brunswick-Lüneburg, and United Kingdom of Great Britain (including British colonies in North America, the British East India Company, and Ireland) were pitted against Austria, France (including the North American colony of New France and the French East India Company), the Russian Empire, Sweden, and Saxony. Portugal (on the side of Great Britain) and Spain (on the side of France) were later drawn into the conflict, and a force from the neutral Netherlands was attacked in India.
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, until the time of the French Revolution. Great Britain, meanwhile, emerged as the dominant colonial power in the world.