Country Abbreviation state 1
Country Abbreviation state 2
log of gdp
Alliance type (1=defense pact, 2=neutrality, 3=entente, 4=no agreement)
CaseID
National Capabilities Index (CINC) for cc1
National Capabilities Index (CINC) for cc2
Major power status of cc1
Major power status of cc2
Direct contig (1=Lnd, 2=1-12 miles watr, 3=13-24, 4=25-150, 5=151-400, 6=not)
Distance, from cc1 to cc2, in miles
gdpen with additional country PWT data
log of gdp, lagged one year
POLITY (from Polity)