KUWAIT, June 18 (KUNA) -- Envoy of His Highness the Amir Sheikh Sabah Al-Ahmad Al-Jaber Al-Sabah, Deputy Minister of Amiri Diwan Affairs Sheikh Mohammad Abdullah Al-Mubarak Al-Sabah left Tuesday for the United Kingdom to take part in the celebration of 120th anniversary of signing the 1899 Kuwait-UK treaty, which established cooperation in several domains. (end) hb