Full Idea
Just wars may not be self-defence, if they are to help an independence struggle, or it is to save another country being invaded, or to prevent enslavement or massacre.
Gist of Idea
Just wars are self-defence, or a rightful intercession in another's troubles
Source
Michael Walzer (Just and Unjust Wars [1977], 06)
Book Reference
Walzer,Michael: 'Just and Unjust Wars' [Penguin 1984], p.90
A Reaction
[summary] Modern wars support some examples of these, but also suggest that without a long-term plan, or an understanding of the country they are entering, such intercessions may worsen the situation.