Answer:
They both got into a argument about whether the upper Ohio river valley was a part of the British empire, this sparked war.
Explanation:
There is many different reasons why they went into war but this is the main one.
It began with a dispute over control of the confluence of the Allegheny River and Monongahela River called the Forks of the Ohio, and the site of the French Fort Duquesne in Pittsburgh, Pennsylvania.
Answer: popular sovereignty
