Did the Americans or British have a worldwide empire?

Both the Americans and the British had a worldwide empire. The British Empire was one of the largest empires in history and at its peak in the 19th century, the British Empire controlled about 25% of the world's landmass. The American Empire, also known as the American hegemony or Pax Americana, refers to the dominant political, economic, military, and cultural influence of the United States over other countries after World War II. While the American Empire is not as extensive as the British Empire was, it is still a major force in the world today.