Pope Leo declares just war theory outdated in landmark encyclical - MSN
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Pope Leo XIV just declared one of Western civilization's oldest moral frameworks obsolete — and his reasoning could reshape how a billion Catholics think about war and violence.
Just War TheoryNonviolence EthicsNatural Law TheoryMoral Philosophy
Theory Briefing
- Pope Leo XIV's first encyclical formally calls just war theory outdated, marking a historic doctrinal shift for the Catholic Church.
- Just war theory, rooted in Augustine and Aquinas, has justified military force for 1,600 years — Leo now argues modern warfare renders its conditions unmet.
- The encyclical urges Catholics to reorient moral teaching around active nonviolence, echoing pacifist philosophy over centuries of sanctioned conflict.