European Union enlargement to 25 members may someday challenge U.S. as single superpower

StreeterThe European Union (EU) added 10 new member nations on May 1, enlarging the union to a total of 25 countries with a combined population of 458 million. The U.S., with a total population of 293 million is still the sole political and economic superpower of the world but may yet be challenged by the EU for that status, according to William J. Streeter, a professor of international business at the Olin School of Business at Washington University in St. Louis.