Final answer:
The causes of the French and Indian War were land disputes, competing imperial ambitions, and alliances with Native American tribes. New England achieved victory through British military reinforcements and alliances with Native American tribes.
Step-by-step explanation:
The French and Indian War was caused by a combination of factors including land disputes, competing imperial ambitions between France and Britain, and alliances with Native American tribes. Both the French and British colonists sought to expand their territories in North America, leading to clashes over control of valuable land near the Ohio River Valley.
The war eventually resulted in New England's victory over the French due to factors such as British military reinforcements and alliances with Native American tribes.