▁rising ▁was ▁given ▁to ▁Tom ▁Clar ke ▁and ▁Se án ▁Mac D erm ott ▁( Mac ▁Di arm ada ). ▁The ▁Irish ▁Vol unte ers — the ▁smaller ▁of ▁the ▁two ▁forces ▁resulting ▁from ▁the ▁September ▁ 1 9 1 4 ▁split ▁over ▁support ▁for ▁the ▁British ▁war ▁effort — set ▁up ▁a ▁" head quarters ▁staff " ▁that ▁included ▁Patrick ▁Pear se < ref > Se an ▁Far rell ▁Mor an , ▁Patrick ▁Pear se ▁and ▁the ▁Polit ics ▁of ▁Red em ption : ▁The ▁Mind ▁of ▁the ▁E aster ▁R ising , ▁( 1 9 9 4 ), ▁Ruth ▁D ud ley ▁Edwards , ▁Patrick ▁Pear se ▁and ▁the ▁Tri umph ▁of ▁Fail ure , ▁( 1 9 7 7 ), ▁Jo ost ▁August in , ▁Patrick ▁Pear se ', ▁( 2 0 0 9 ) </ ref > ▁as ▁Director ▁of ▁Military ▁Organisation , ▁Joseph ▁Pl unk ett ▁as ▁Director ▁of ▁Military ▁Oper ations ▁and ▁Thomas ▁Mac Don agh ▁as ▁Director ▁of ▁Training . ▁É am onn ▁Ce annt ▁was ▁later ▁added ▁as ▁Director ▁of ▁Communic ations . ▁ ▁In ▁May ▁ 1 9 1 5 , ▁Clar ke ▁and ▁Mac D erm ott ▁established ▁a ▁Military ▁Committee ▁or ▁Military ▁Council ▁within ▁the ▁IR B , ▁consisting ▁of ▁Pear se , ▁Pl unk ett ▁and ▁Ce annt , ▁to ▁draw ▁up ▁plans ▁for ▁a ▁rising . ▁Clar ke ▁and ▁Mac D erm ott ▁joined ▁it ▁shortly ▁after . ▁The ▁Military ▁Council ▁was ▁able ▁to ▁promote ▁its ▁own ▁policies ▁and ▁personnel