International Boy Scouts, Troop 1 the Boy Scouts of Japan in 1971 and preparations for the event were well under way by 1970. The IBS cooperated with the Japanese Scout association in the production of pre-Jamboree promotional items, including brochures, postcards and posters. The items featured IBS Scouts wearing the Scout uniforms of various countries to help promote the "international" image of the event under the theme "For Understanding". That 13th World Scout Jamboree was set to be held near Gotemba, Shizuoka Prefecture at Asagiri Kogen and, in preparation for that world event, the 5th Nippon Jamboree was held at this location in August 1970.
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