President Barack Obama is back in the White House after returning from a 10-day Asian tour to four nations.

Obama arrived home Sunday afternoon by helicopter from Andrews Air Force Base, completing his longest foreign trip as president.

His stops in the booming democracies of India and Indonesia yielded dramatic diplomatic successes and memorable images.

Obama then went to Seoul, South Korea, for a meeting of the Group of 20 developed and emerging economies. There, he failed to achieve a free-trade deal with Korea or rally tough action against China's currency practices.

He also visited Japan and assured Russian President Dmitry Medvedev that he'd work to get the Senate to ratify a new nuclear weapons pact between the countries.