(3) Military reprisals in Belgium were, at any rate, regular in one respect: they were carried out under orders. According to the "Manual of Military Law," compiled for the use of our own Army, no reprisals are legitimate unless ordered by an officer. It is obvious that in very many cases Irish reprisals have been executed by the rank and file on their own responsibility, in total disregard of military discipline, but with complete immunity from punishment. Certain of these reprisals, _e.g._, the shooting down of men, women and children at Croke Park, far exceed in atrocity anything proved against the Germans in Belgium. (4) Although houses were frequently destroyed by the Germans the pretext in every case was that from these houses civilians had fired upon the troops. No parallel, as far as I can see, exists for the amazing Order issued in Cork to the effect that houses with their furniture are to be burnt because the occupants "must have known of ambushes" in the neighbourhood and "ought to have informed the authorities." Nor again is any parallel found in the White Book to the reckless destruction in Cork of public and private buildings, including the Free Library, as a reprisal for an ambush outside the city, or for the burning of creameries, factories, farms and haystacks in a general campaign of vengeance. It seems clear that fresh precedents are here established which are certainly not covered by the rules of civilised warfare, and run counter to the ordinary laws of reason and humanity. (5) The use of hostages has been adopted in Ireland, as in Belgium, for there is little discrimination in principle between shooting hostages and exposing them to death on military lorries from the fire of their compatriots. Although the question of hostages is not covered by the Regulations of either Geneva or the Hague, the claim to inflict injury or death on innocent persons in order to bring pressure to bear on an enemy force is now generally condemned as a barbarous and obsolete usage of war, and as such is expressly discountenanced by our "Manual of Military Law" (page 306). PREFACE Immediately after the outbreak of the present war, the Belgian civil population began a wild contest against the German troops, which constitutes a flagrant violation of international law, and resulted in the most serious consequences for Belgium and its people.