▁Battalion ▁was ▁to ▁cover ▁a ▁large ▁area ▁of ▁South ▁Dublin , ▁with ▁a ▁lot ▁more ▁men ▁expected ▁to ▁report ▁for ▁duty ▁than ▁actually ▁did ▁so ▁on ▁the ▁day . ▁The ▁sever ely ▁de ple ted ▁numbers ▁were ▁the ▁result ▁of ▁counter m and ing ▁orders ▁issued ▁by ▁E oin ▁Mac Ne ill ▁advis ing ▁the ▁Vol unte ers ▁not ▁to ▁take ▁part ▁in ▁the ▁R ising . ▁Mac Ne ill ▁had ▁lear nt ▁of ▁the ▁arrest ▁of ▁Roger ▁Cas ement ▁and ▁the ▁subsequent ▁loss ▁of ▁German ▁arms . ▁After ▁confront ing ▁Patrick ▁Pear se , ▁who ▁refused ▁to ▁be ▁s way ed ▁by ▁this ▁revel ation , ▁Mac Ne ill ▁felt ▁he ▁had ▁no ▁option ▁but ▁to ▁place ▁a ▁last ▁minute ▁news ▁advert is ement ▁calling ▁the ▁R ising ▁off . ▁This ▁caused ▁trem end ous ▁confusion ▁among ▁the ▁Vol unte ers , ▁especially ▁outside ▁of ▁Dublin . ▁For ▁those ▁that ▁did ▁show ▁up , ▁the ▁British , ▁reported ly , ▁" cons ider ed ▁De ▁Val era ' s ▁forces ▁the ▁best ▁trained ▁and ▁best ▁led ▁among ▁the ▁reb els ". ▁ ▁Wh el an ▁was ▁one ▁of ▁the ▁ 1 4 ▁Vol unte ers ▁of ▁Unit ▁“ D ” ▁Company , ▁who ▁occupied ▁Bol and ' s ▁Mill ▁at ▁around ▁no on ▁on ▁E aster ▁Monday . ▁ ▁In ▁the ▁first ▁art illery ▁fire ▁of ▁the ▁week , ▁Bol and ' s ▁Mill ▁had ▁been ▁sh elled ▁by ▁the ▁gun bo at ▁“ Hel ga ” ▁( now ▁known ▁as ▁the