This article discusses ethical aspects of being part of military and political alliances, such as NATO. This is a question that has been rarely addressed in the literature on the ethics of war.
Syse, Henrik (2008) Legitimitet og allianser [Legitimacy and Alliances], in Selvstendig og beskyttet: Det stormaktsgaranterte Norge fra Krimkrigen til NATO. Bergen: Fagbokforlaget (152–161).