In the post-Vietnam Cold War environment, two dimensions-cooperative i
nternationalism and militant internationalism-came to characterize the
foreign policy beliefs of American leaders and the mass public. Altho
ugh grounded in Cold War concepts and challenges, evidence from opinio
n polls in the transitional period to a post-Cold War world suggests t
hat the cooperative and militant faces of internationalism persist. Fu
rthermore, because they parallel realism and idealism, as competing or
ientations toward global problems, the two dimensions and the fourfold
typology of foreign policy beliefs they define may help to understand
the intersection of attitudes toward traditional security issues and
the welfare issues that may dominate future global and national agenda
s. Preliminary evidence is used to probe the argument that hard-liners
on national security issues will evince nationalistic and protectioni
st sentiments on environmental and trade issues. Contrariwise, accommo
dationists on security issues are hypothesized to be semisovereigns on
environmental issues and half loafers on trade issues. Internationali
sts are most likely to embrace free trade, and isolationists will cont
inue to shun U.S. involvement across all security and nonsecurity issu
es areas.