International Boy Scouts, Troop 1 1963 and 1965 he was awarded the first of the Korea Scout Association's distinguished service awards, also called the Silver Cuckoo, in 1966. Mittwer participated as a staff member at the 12th World Scout Jamboree in 1967 in Idaho, U.S.A. and, at the conclusion of the Jamboree and in connection with the 21st World Scout Conference held in Seattle, Washington, he was presented a Scout Friendship Certificate by the WOSM in recognition of his contribution to international Scouting. He initiated an exchange program between the Incheon District of the Korea Scout Association and the Kanagawa Council of the Boy Scouts
World Organization of the Scout Movement first task of the bureau was to co-ordinate the discussions and to prepare a second international conference in Paris in 1922. At the 1922 Paris conference The International Conference of the Boy Scout Movement, its committee and BSIB were constituted by the founding member organizations. In 1961 The International Conference of the Boy Scout Movement reconstituted the organization introducing the name World Organization of the Scout Movement (WOSM). The International Conference of the Boy Scout Movement became the WOSM's World Scout Conference, its International Committee became the World Scout Committee and the Boy Scouts International Bureau became the WOSM's World