Bosshard first visited the Far East in 1931 when he went to Manchuria and Thailand. From 1933-39 he was based in Peking, making various trips to Mongolia, Yangtse and covering the Sino-Japanese war in 1937. During this period his work was used by several American agencies including Black Star and was frequently published in Berliner Illustrirte and Neue Zürcher Zeitung.