https://www.realcleardefense.com/articles/2024/03/16/gospels_of_foreign_policy_realism_1018803.html
Worth the read. An excerpt:
Ensuring a nation’s survival sometimes leaves tragically little
room for private morality. Discovering the inapplicability of
Judeo-Christian morality in certain circumstances involving
affairs of state can be searing. The rare individuals who have
recognized the necessity of violating such morality, acted
accordingly, and taken responsibility for their actions are among
the most necessary leaders for their countries, even as they
have caused great unease among generations of well-meaning
intellectuals who, free of the burden of real-world bureaucratic
responsibility, makes choices in the abstract and treat morality
as an inflexible absolute.