TOKYO: US President Donald Trump arrived in Japan on Saturday for a four-day state visit likely to be dominated by warm words and friendly images, but relatively light on substantive progress over trade.

Air Force One touched down in Japan just before 5 p.m. local time (0800 GMT) on a sunny Tokyo afternoon and a smiling Trump descended with his wife Melania for a red-carpet greeting led by Japanese Foreign Minister Taro Kono.