This article offers an interpretation of the current international sit
uation from the perspective of power transition theory. Previous effor
ts to understand what the end of the Cold War means for international
relations have provided only part of the picture. Optimistic views ten
d to deny the possibility of the emergence of new threats, while pessi
mistic arguments generally fail to recognize that the prospects for ma
jor war have been significantly reduced by the dramatic events of the
last half decade. The interpretation offered here is potentially advan
tageous because it draws insights from a theory with a long record of
empirical support. Power transition theory is consistent with the exis
tence of a 'Long Peace' since World War II, with the Cold War's peacef
ul end, and thus provides confidence to those who would use it to inte
rpret the prospects for the future. The conclusion offered here is tha
t while the end of the Cold War offers reason for celebration, there i
s also cause for concern.