Why do Americans call the Seven Years' War "French and Indian War"?

I am surprised that the Americans call it that because it is a conflict that will spread not only in America but also in Europe and India, and even on certain islands. and will change global geopolitics.
Why do Americans call the Seven Years War French and Indian War?
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Of course the two great powers that were at war were the British and the French, and yes it was in America that the war between the French and British colonies began.
Why do Americans call the Seven Years' War "French and Indian War"?
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