Final answer:
The French and Indian War resulted in major territorial changes and increased tensions between the British, Native Americans, and colonists, contributing to the outbreak of the American Revolution.
Step-by-step explanation:
The lasting impact of the French and Indian War on all parties involved can be summarized as follows: territorial changes, increased tensions, and significant contributions to the outbreak of the American Revolution. The Treaty of Paris of 1763, which ended the French and Indian War, led to dramatic changes in North America's geopolitical landscape.
The British emerged as the dominant European power east of the Mississippi River, leading to discontent among Native American tribes who lost a significant ally in the French and faced harsher regulations and policies from the British, such as restrictions on gunpowder and ammunition sales.
This all culminated in resistance and tensions, including Pontiac's Rebellion. Meanwhile, the war's financial strain on the British Empire necessitated tax increases and tighter controls over the colonies, sowing the seeds of dissatisfaction that would eventually lead to the American Revolution.