Sabah Al-Ahmad Al-Jaber Al-Sabah
Johnston undertook his first state visits in February and March 2011, journeying to Kuwait (to attend its 50th Independence Day and take part in the celebrations of the fifth anniversary of the accession of Emir Sabah Al-Ahmad Al-Jaber Al-Sabah) and Qatar. He then, in April of the same year, attended the wedding of Prince William, Duke of Cambridge, and Catherine Middleton and the reception at Buckingham Palace that followed. In late June, he hosted the couple at various events during their tour of Canada.