Who: Great Britain
The Seven Years' War (1756-1763) was a global conflict fought between Great Britain and France, with their respective allies. The war was fought over control of land and resources in North America, Europe, Africa, and India.
In the early stages of the war, France had the upper hand. They had a larger army and navy, and they were able to win several key victories. However, Great Britain was able to turn the tide of the war in its favor by forming alliances with other countries, such as Prussia and Portugal.
One of the most important factors that shifted the balance of power in Great Britain's favor was the capture of Quebec in 1759. This victory gave Great Britain control of the St. Lawrence River and allowed it to cut off French supply lines to its troops in North America.
Another important factor was the British victory at the Battle of Plassey in 1757. This victory gave Great Britain control of Bengal, the richest province in India.
By 1763, Great Britain had emerged as the dominant power in the world. The Seven Years' War had given it a vast empire, and it had become the leading power in trade and commerce.