The 3rd and 4th Nippon Jamborees were held in 1962 and 1966 respectively, and the IBS continued its participation at the Jamborees with both Scouts and Scouters attending the events. In 1963, IBS Scouter Bro. Germain Vonderscher participated as a staff member at the 11th World Scout Jamboree in Greece, serving as a translator for visiting contingents. In 1966, IBS Scouter John Mittwer was awarded the Silver Cuckoo Distinguished Service Award by the Boy Scouts of Japan. Mittwer's work had taken him to Incheon, Korea where he was instrumental in helping revive post-war Scouting in the area. Following awards of Certificates of Commendation by the Korea Scout Association in 1962, 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 of Japan and, in 1970, was made an Honorary Citizen of Incheon in recognition of his contribution to Scouting in that area.
