今日國際社會中，政府對於地緣政治下安全風險的認知，決定了國家之間的競爭關係，最終是走向和平還是戰爭? 而在此類地緣風險的認知作戰下，媒體扮演了重要的角色；一般而言，媒體在戰爭上扮演的角色分為資訊控制下的「唱和者」、愛國主義下的「啦啦隊」，以及反對衝突戰爭的「對抗者」。

本研究以1930 年代中期至1940 年代中期，提倡日本地緣政治的小牧實繁為分析物件，探討其地緣思維形成、轉變、與媒體之間的互動，以及後續帶來的影響等。結論指出，在論及媒體與戰爭的關係時，不可忽略傳播媒體在地緣風險中倡議與噤聲特定觀點的「宣教者」角色，即以地緣政治來闡述並宣揚國家利益，進而影響國民的世界觀，以及國家、社會對於戰爭的認知。

In contemporary international society, the perception of security risks in geopolitics by countries and governments determines whether the competition between countries will eventually lead to peace or war. In the current cognitive warfare of geo-risk, the media plays an important role. In general, the roles of the media in war can be divided into “the sympathizer” under information control, “the rooter” under patriotism, and “the resister” against conflict and war.

This paper focuses on the geopolitical thinking of Saneshige Komaki, who was an advocate of Japanese geopolitics from the mid-1930s to the mid-1940s, and discusses its formation and transformation, how it interacted with the media, and the impact it brought. This paper argues that when discussing the relationship between media and war, the media also plays the role of “the missionary” of geo-risk. The role of the media as a missionary is to promote national interests through geopolitics, which, in turn, affects the people’s worldview and the country’s perception of war.