 Together, Plunkett and Casement presented a plan (the 'Ireland Report') in which a German expeditionary force would land on the west coast of Ireland, while a rising in Dublin diverted the British forces so that the Germans, with the help of local Volunteers, could secure the line of the River Shannon, before advancing on the capital.The German military rejected the plan, but agreed to ship arms and ammunition to the Volunteers.James Connolly—head of the Irish Citizen Army (ICA), a group of armed socialist trade union men and women—was unaware of the IRB's plans, and threatened to start a rebellion on his own if other parties failed to act.