A Topic of Moral Theology

The conditions of a just war

Sovereign authority, just cause, right intention.

Also asked about as…

when is war justified (ed.)

In the index as War · Soldiers, St. Augustine on the Christian, of Rome · Peace · *Moderamen inculpatae tutelae* · Ambuscades · Arbitration · Arms · Commercialism vs. peace · Deserter · Diplomacy · Enemies in war · Espionage · Fathers · Geneva · Hostages · International law on war · Jingoism · Journalism · Kant · Killing · Leader of War · Lying · Mercenaries · Military service

In the manuals

A Manual of Moral Theology for English-Speaking Countries

Vol. I, Bk. VI, Pt. V, Chapter VI. War, n. 3 — The conditions on which war may be lawfully waged are three: (a) The public authority of a sovereign state is requisite to declare war, for war, except in just defence, cannot be made on private authority, or by a less t… Read in context →

Institutions of Moral Theology (Institutiones Theologiae Moralis)

Vol. I, On the Fifth Precept of th…, VII. On War, nn. 753 & 754 (2 passages — hover a number to read it)

Compendium of Moral Theology of Fr. John Peter Gury, S.J., with the Notes of Antonio Ballerini, S.J.

Vol. I, Treatise On the Precepts o…, On the Fifth Precept of th…, Chapter IV. On War, n. 408 (11 passages — hover a number to read it)

Synopsis of Moral and Pastoral Theology

Vol. III, Contracts, and the Obligat…, On the Virtue of Justice (…, Part I — Chapter II: On Injury, or the Violation of Right, nn. 346, 347, 348, 349, 350, 351 & 352 (7 passages — hover a number to read it)

A Handbook of Moral Theology (Koch–Preuss)

Vol. V, Pt. I, Ch. IV, Section 3: The Moral Principles Involved in War, nn. ¶1, ¶2, ¶3, ¶4, ¶5, ¶6, ¶7, ¶8, ¶9, ¶10, ¶11, ¶12, ¶14, ¶15, ¶16, ¶17, ¶18, ¶19, ¶20, ¶21 & ¶22 (21 passages — hover a number to read it)

Manuale Theologiae Moralis

Vol. II, Tr. XI, Sect. I, Q. III, Ch. III, Art. III, § 2, 4. On War, n. 130 — 130. It is explained. That war is sometimes licit is admitted by all (except the Manichaeans, Quakers, and a few others). For war is sometimes the only means for some people to vindicate its own rights, indeed to defend … Read in context →

Summa Theologiae Moralis

Vol. II, Special Moral Theology: On…, Treatise: On the Cardinal …, Second Part: Concerning Le…, Question Three: Concerning the Defense of the Common Good or On War, nn. 273 & 275 (21 passages — hover a number to read it)

Compendium of Moral Theology

Vol. I, Tr. VI, On the Fifth Precept of th…, Chapter IV. On War, n. 277 — I say 1st. War is licit of itself, whether for repelling injury or for vindicating one's own right. The reason is that any society independent from another society ought to have a means of protecting itself against injur… Read in context →

Summa Summae S. Thomae (Billuart)

Billuart, Summa Summae, Tomus III. On the Secunda …, On Charity, On the Vices Opposed to Ch…, On war, nn. 5, 10, 11, 12 & 13 (5 passages — hover a number to read it)

Palladium Theologicum, Tome V: On the Virtues

Tr. I, Disputation XVI: On War, Question I: Whether any war can be just, nn. 1–14 (14 passages)

Tr. I, Disputation XVI: On War, Question II: What conditions are required for a just war, nn. 1–33 (33 passages)

Tr. I, Disputation XVI: On War, Question III: By whom war may be waged, nn. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 & 12 (12 passages — hover a number to read it)

A Brief Text-Book of Moral Philosophy

Chapter IV: International Law, nn. ¶562, ¶563, ¶564 & ¶565 (4 passages — hover a number to read it)

Treated under the broader heading War — Wouters, Manual of Moral Theology · McHugh–Callan, Moral Theology · Bucceroni, Cases of Conscience · Vermeersch, Theologia Moralis · Marc, Institutiones Morales · Konings, Theologia Moralis · Rickaby, Moral Philosophy · The Roman Catechism · Slater, Religion & Human Interests · Decretum of Gratian — these works do not divide the matter as finely as we do here, so their treatment stands one heading up (ed.)