This side path is organized around the life and work of one of the most famous Vietnamese medical doctors, Tôn Thất Tùng. Although Tùng trained as a liver surgeon and is best known for developing a liver surgery technique, his role in the medical corps and ministry of health of the Việt Minh meant that he played an important role in investigating suspected use of germ warfare during the First Indochina War. In fact, he spent much of the 1950s through the 1980s researching the effects of various forms of environmental warfare and fighting its use.

In the late 1940s, the Việt Minh were engaged in a fierce battle for survival with the French. Starting in late 1946, when Tùng left Hanoi to join the resistance, he and other medical doctors operated a mobile hospital and medical school in Chiêm Hóa in northern Vietnam. Tùng worked effectively and in 1948 he became vice minister of health. As Christopher Goscha has recently shown, wartime conditions and state-building needs gave Vietnamese medical doctors no choice but to focus on military medicine (Goscha 2011). The difficult early years of the First Indochina War forced the DRV medical personnel to find innovative solutions, including the use of a bicycle to generate electricity.

Over his long career, Tùng made the transition from mapping the health of individual human bodies to mapping the health of the Vietnamese geobody. First diseases caused by poverty during the colonial era and then diseases caused by environmental warfare during the Cold War encouraged Tùng to link the study of bodies and structures. As a medical doctor, Tùng realized that he could not heal his patients without thinking sociologically, historically, and spatially, i.e. without mapping invasions.