Aggression (International law) 12 War (International law) 6 Intervention (International law) 4 Self-defense (International law) 3 International law 2 Rule of law 2 World War, 1939-1945 2 86.92 law of war 1 International Criminal Court 1 International crimes 1 International crimes, nternational and comparative law ; 1 Just war doctrine 1 Peacekeeping forces 1 Rome Statute of the International Criminal Court (1998 July 17) 1 Self-defence (International law) 1 Treaties 1