Which three European nations controlled most of the land in America by the mid 18th century?

By the mid-18th century, the three European nations that controlled most of the land in America were Great Britain, France, and Spain. Great Britain held significant territories along the eastern seaboard and expanded westward, while France controlled a vast region in the interior, particularly in Canada and the Mississippi River Valley. Spain held territories in the southwestern United States and Florida, as well as parts of Central America and the Caribbean. These nations' territorial claims set the stage for conflicts, particularly the French and Indian War.