Raising and maintaining military forces have posed enormous challenges for
the United States and its allies. Economists have made significant contribu
tions to understanding of how to recruit and manage such forces. This paper
highlights key past contributions and discusses challenges for future rese
arch. Rapid changes in the roles and missions of military personnel, techno
logy, and the civilian labor market pose serious challenges for future mili
tary manpower policy and will challenge economists to develop new approache
s to military recruiting and personnel management. Yet the body of past res
earch can continue to provide insight and guidance in making decisions abou
t defense manpower.