Appalled by the prospect of falling under the sway of the island’s impoverished Catholic majority, activists in wealthier, largely Protestant northern Ireland vowed to form a rebel provisional government of their own. Quietly supported by Protestant landowners in the rest of Ireland, they set up a militia for which they imported 30,000 rifles. In response, Irish nationalists in Dublin formed their own paramilitary force and also began arming. Delighted by this potential warfare in England’s backyard, the Germans secretly sold weapons to both sides.

