- In 1989 Forsberg briefed President George H.W. Bush and cabinet officials on U.S.-Soviet arms-control issues.
- Over the years, Forsberg authored or edited a number of books on nuclear disarmament, including: Resources Devoted to Military Research and Development: An International Comparison (1972); The Price of Defense (1979); Peace Resource Book (1985); Cutting Conventional Forces (1989); The Arms Production Dilemma (1994);Nonproliferation Primer (1995); and Abolishing War: Culture and Institution (1998).