This dataframe contains postwar alliance network data from 1946 to 2012 (2 year interval).
The dataframe has contains data for postwar alliance network data from 1946 to 2012 with 2 year interval. After removing disconnected components, 104 countries are included. In this data set, a defense pact (Type I), which is the highest level of military commitment, is coded as 1, and 0 otherwise.