What was a reason that Britain defeated France in the Seven Years' war?
The Seven Years' War was a massive conflict, truly a world war, and making generalizations about it is difficult. One reason that Great Britain was able to prevail over France in the conflict globally was their marked naval superiority. This enabled the British to move troops quickly to such locations as the West Indies and India, both major theaters of the war. It also enabled them to blockade French colonies, especially in the Caribbean. Britain was also able to avoid committing its forces in large part to a continent-wide struggle, enabling them to fight with more numbers in North America. And the efforts of William Pitt in securing massive financial and popular support for the war, as well as wise strategy, played a key role too. But it was their naval superiority, as it would be in the Napoleonic Wars, that was their biggest advantage.