The article discusses the longstanding relationship between religion and politics, particularly concerning war, which has often been deemed sacred throughout history. Although most religions have rejected war as a symbol of evil, there are instances where they reluctantly accept it as a necessary evil, especially when it serves to protect the high values they uphold. This led to the development of various theories regarding just and unjust wars, stimulating discussions not only in theology but also across social and humanitarian sciences.

In modern societies, the significance attributed to metaphysical concepts such as Good and Evil varies based on religious influences in their organization and functioning. In secular Western democracies, these notions have lost the critical role they once played in shaping and organizing a country's life; however, they have not entirely disappeared from societal discourse. Instead, while these societies may prioritize different frameworks of ethics and morality, the underlying debates around the morality of war, driven by religious principles, still persist.

The implications of this relationship are profound, influencing moral arguments made in the context of warfare and the justification of military actions. Understanding the historical context of warfare theology provides insight into contemporary conflicts and the motivations behind them, as well as the ongoing dialogue about the intersection of religion, society, and politics in such discussions. This highlights the importance of analyzing how historical doctrines continue to shape modern thoughts on conflict and legitimacy in warfare.