Obama arrives in Shanghai for China visit

US President Barack Obama has arrived in Shanghai to begin his four day visit to China. Rebuilding the world economy, tackling global warming, and combating terrorism are high on his agenda.

Obama is then scheduled to spend two days, here in the capital Beijin,g where he will meet Chinese President Hu Jintao and other senior officials.

The US President arrives with complex goals. Obama has stated clearly that "no single nation can meet the challenges of our time alone." His Asian trip aims to fulfill his commitment to work with the rest of the world. And China, as the largest developing country, and one of the only nations that has not been devastated by the global financial crisis, is more and more the one country the US looks to for cooperation.

Jon Huntsman, US Ambassador to China, said, "The US-China relationship is and will continue to shape the twenty first century. There's great strategic significance ... As we have done in some key issues."

Contacts between leaders of the two countries have far exceeded their predecessors. This trip will be the third formal meeting between Presidents Hu Jintao and Barack Obama this year. They have also spoken on the phone five times so far.