Final answer:
King George II of England's conflict with the French was caused by the contestation of land in the Ohio River Valley and alliances formed by Native American tribes during the French and Indian War.
Step-by-step explanation:
The conflict between King George II of England and the French can be traced back to the French and Indian War, also known as the Seven Years' War. The British and French colonists were contesting land in the Ohio River Valley, and in 1754, George Washington, a Virginian, attempted to defeat the French at Fort Necessity but was defeated. This prompted Great Britain to take action, and the war between the British and French ensued. Native American tribes also aligned themselves with either the French or the British during this conflict.