Answer:
Control of North America
Explanation: During the period of 1688 to 1763, Britain fought separate wars against France and Spain. The center of these conflicts was the same: Control North America.
First, from 1702 to 1713, there was the War of Spanish Succession that England fought against Spain and France over who would ascend the Spanish Throne after the last Hapsburg Rule Died.
Next came the War of Jenkins's from 1739 to 1742 that was a conflict between Britain and Spain over land that was located in South Carolina and Florida.
King George War from 1744 to 1748 came because of the northern colonies and New France.
The final imperial war was the French and Indian War from 1754 to 1763 that is also known as the Seven Years War in Europe.