During the past decade, a growing number of scholars have turned to cultura
l approaches to account for the foreign and security policies of states. Su
rprisingly, however, these scholars have devoted little attention to the co
ncept that boasts the most venerable tradition in the field of political sc
ience, that of political culture, as a possible source of state behavior. T
his neglect is unjustified. Like other cultural variables, political cultur
e promises to explain phenomena that are enigmatic from the perspective of
leading noncultural theories, such as neorealism. Yet it applies to a broad
er range of cases than do the many alternative cultural concepts, such as s
trategic culture and organizational culture, that have been employed. I beg
in by describing an important puzzle in the international relations literat
ure that suggests the need to consider culture as a variable: the failure o
f neorealism to predict German security policy after unification. I then as
sess the various cultural approaches used in recent years to explain state
behavior. After noting the similarities in these approaches, I discuss the
important differences that mark them and identify the reasons for the great
er utility of political culture. Finally, I illustrate the explanatory powe
r of the political culture approach by applying it to the case of German se
curity policy since 1990.