In February 2015, the Duke visited Japan, meeting with Emperor Akihito and Empress Michiko at the Imperial Palace and visiting survivors devastated by the 2011 tsunami. From 1 to 4 March, the Duke visited the Chinese cities Beijing, Shanghai, and Yunnan and met with President Xi Jinping. It was the first royal visit to mainland China in almost three decades. In April 2016, the William and his wife undertook a tour to India and Bhutan. Activities included visiting children's charities such as Childline India, as well as a visit to Lingkana Palace. Later that month, the couple met again with the Obamas at Kensington Palace. In April 2016, William and Catherine toured to India and Bhutan. The couple toured Canada once again in September 2016. In November 2016, he visited Vietnam, meeting with Prime Minister Nguyen Xuan Phuc and touring local primary schools. Countries visited by the couple in 2017 include France, Poland, Germany, and Belgium. In January 2018, the couple visited Sweden and Norway. The visits, which were, like others, requested by the Foreign Office, were interpreted to benefit UK-European relations post Brexit. In June 2018, the Duke toured Jordan, Israel and Palestine.