This article analyzes the relations between the international news agency and international politics between the World Wars with focusing on Yukichi Iwanaga, DomeiNews Agency and Christopher Chancellor, Reuters. Both, connected with the ForeignMinistries, played a significant role as the second track diplomacy between Japan and the United Kingdom in the 1930s. Especially in 1938, Chancellor visited Japan for the talk with the Japanese Foreign Minister, Kazushige Ugaki and Finance Minister, Shigeaki Ikeda to insist the Japanese Army withdrawal from the Shanghai International Settlement. This was organized by Iwanaga.