In 1951, Kahin became an assistant professor of government at
Cornell University. He received
tenure and was promoted to associate professor in 1954; he became a full professor in 1959. He became the director of Cornell's Southeast Asia Program in 1961 and held the position until 1970. Kahin also founded the Cornell Modern Indonesia Project in 1954 and served as its director until his retirement in 1988. Between 1962 and 1963, he became a
Fulbright professor at
London University. Kahin was a member of the
Council on Foreign Relations and the
American Academy of Arts and Sciences. The university was divided between proponents of the inclusion of the principles of
social justice in course instruction and advocates of
academic freedom for the faculty. This clash affected the Department of Government, where Kahin and a number of professors defending academic freedom resided. Many of these professors had considered leaving the university due to the administration's policies promoting racial justice, and many did following the end of the occupation. The following week, the Department of Government organized a
teach-in on academic freedom, and Kahin was invited to speak at the event by department chair Peter Sharfman. Historian
Walter LaFeber would later remember his remarks as "the most eloquent speech about academic freedom I have ever encountered anywhere up to that time or since that time".
Vietnam War critic Kahin was a leading critic of the
Vietnam War and opposed United States involvement. He participated in a teach-in in May 1965 and led the anti-war position. a publication which helped to turn people in academia against
U.S. intervention in Vietnam. It was one of the most comprehensive studies of American involvement in the war to date. According to Kahin and Lewis, American policy was based on a distorted view of Vietnam. "Vietnam is a single nation, not two," Kahin and Lewis argued, and "
South Vietnam constitutes an artificial creation whose existence depends on the sustained application of American power." In his foreword to Gareth Porter's book
Cambodia: Starvation and Revolution, Kahin argued that Khmer Rouge policies "were not, then, applications of some irrational ideology, but reflected pragmatic solutions by leaders who had to rely exclusively on Cambodia's own food resources and who lacked facilities for its internal transport."
Relations with Indonesia After Kahin was expelled from Indonesia in 1949, he helped young Indonesian diplomats
Sumitro Djojohadikusumo,
Soedarpo Sastrosatomo, and
Soedjatmoko during their work at the
United Nations and in
Washington, D.C. He also developed a close relationship with
Sukarno and
Mohammad Hatta, the first President and Vice President of Indonesia. In his book
Subversion as Foreign Policy , he attempted to clear former Prime Minister
Mohammad Natsir, with whom he also developed a personal relationship, of any involvement with a
rebellion movement against the Indonesian government. The book also described a "destructive relationship" between the United States and Indonesia during Sukarno's presidency. Kahin helped develop Indonesian studies in the United States at a time when the majority of material on Indonesia was held at
Leiden University in the
Netherlands. At Cornell, he introduced a
postgraduate education program for diplomats from around the world who were in the middle of their careers. He also helped many Indonesian intellectuals, including
Deliar Noer and sociologist
Selo Soemardjan, obtain education in the United States. Several of Kahin's students and associates, including
Herbert Feith, went on to establish similar programs at the universities where they subsequently taught. At one point, the United States blocked Kahin's passport, and the
Suharto government in Indonesia also denied him a visa. In 1991, Indonesian foreign minister
Ali Alatas awarded Kahin the
Bintang Jasa Pratama () for his work as a "pioneer and precursor of Indonesian studies in the U.S." ==Personal life==