Michelle Obama starts landmark trip

Wife of US president to spend most of Friday with first lady Peng Liyuan

After a long journey from Washington, US first lady Michelle Obama landed in Beijing on Thursday evening, starting her long-awaited trip to China with a big smile and a wave.

When Obama, in an elegant black dress, stepped out of the plane with her mother and two teenager daughters, dozens of reporters that had waited in the airport for hours incessantly clicked their camera shutters.