US President Donald Trump and his Chinese counterpart, Xi Jinping, have delivered broad smiles ahead of their high-pressured summit talks.
The leaders of the world's two biggest economies were seen shaking hands at the president's Mar-a-Lago retreat in Palm Beach, Florida.
The pair then formally posed with their wives, Melania Trump and Peng Liyuan, on the steps before traditional sit-down shots inside.
The couples will dine together to begin an overnight summit that will include a working lunch on Friday where the tone could become far less cordial.
Mr Trump last week tweeted that the summit would be "a very difficult one", with North Korea's missile tests, Chinese tensions with Taiwan and trade issues on what could become a combative agenda.