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War (International law) — Audiobooks
The Rights of War and Peace
by Hugo Grotius
The Laws of War, Affecting Commerce and Shipping
by H. Byerley (Henry Byerley) Thomson
The War Book of the German General Staff
by Prussia (Germany). Armee. Grosser Generalstab. Kriegsgeschichtliche Abteilung II
Letters to "The Times" upon War and Neutrality (1881-1920)
by Thomas Erskine Holland