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
International Boy Scouts, Troop 1 Scout association's readmission to the world Scout organization. John Mittwer, a founding member of the IBS as a boy, and an active IBS Scouter, was also serving on both the Board of the Kanagawa Council of the Boy Scouts of Japan and as a District Commissioner for the Boy Scouts of America's Far East Council. Helping to revive postwar Scouting, he was a key organizer of the event that again brought groups from the IBS, the BSJ, and the BSA Far East Council together for an "international" camp held in Yokohama at Sankeien, the private garden of Mr. Hara. Soon