▁Organisation . ▁The ▁idea ▁was ▁that ▁IR B ▁members ▁within ▁the ▁organisation ▁would ▁know ▁these ▁were ▁orders ▁to ▁begin ▁the ▁rising , ▁while ▁men ▁such ▁as ▁Mac Ne ill ▁and ▁the ▁British ▁authorities ▁would ▁take ▁it ▁at ▁face ▁value . ▁ ▁On ▁ 9 ▁April , ▁the ▁German ▁Navy ▁dispatch ed ▁the ▁SS ▁Lib au ▁for ▁County ▁Ker ry , ▁dis gu ised ▁as ▁the ▁Norwegian ▁ship ▁Aud . ▁It ▁was ▁loaded ▁with ▁ 2 0 , 0 0 0 ▁rif les , ▁one ▁million ▁r ounds ▁of ▁am mun ition , ▁and ▁explos ives . ▁Cas ement ▁also ▁left ▁for ▁Ireland ▁ab o ard ▁the ▁German ▁sub marine ▁U - 1 9 . ▁He ▁was ▁disappoint ed ▁with ▁the ▁level ▁of ▁support ▁offered ▁by ▁the ▁Germ ans ▁and ▁he ▁intended ▁to ▁stop ▁or ▁at ▁least ▁post p one ▁the ▁rising . ▁ ▁On ▁Wed nes day ▁ 1 9 ▁April , ▁Ald erman ▁Tom ▁Kelly , ▁a ▁S inn ▁F é in ▁member ▁of ▁Dublin ▁Corporation , ▁read ▁out ▁at ▁a ▁meeting ▁of ▁the ▁Corporation ▁a ▁document ▁pur port edly ▁le aked ▁from ▁Dublin ▁Castle , ▁detail ing ▁plans ▁by ▁the ▁British ▁authorities ▁to ▁shortly ▁arrest ▁leaders ▁of ▁the ▁Irish ▁Vol unte ers , ▁S inn ▁F é in ▁and ▁the ▁G ael ic ▁League , ▁and ▁occup y ▁their ▁prem ises . ▁Although ▁the ▁British ▁authorities ▁said ▁the ▁" Cast le ▁Document " ▁was ▁fake , ▁Mac Ne ill ▁ordered ▁the ▁Vol unte ers ▁to ▁prepare ▁to ▁resist . ▁Un be