Award-winning historian Walter Russell Mead says, "The key political question of the twenty-first century is, ’How does the U.S.-China relationship develop?’"

Donald Gregg, U.S. ambassador to South Korea in the first Bush administration, says the situation with North Korea is “quite dangerous” and that immediate direct talks between Washington a…

Richard C. Holbrooke, U.S. ambassador to the United Nations in President Clinton’s second term, warns that disorder, anti-Americanism, and disunity in Iraq will require a very long American com…