▁appointed ▁as ▁the ▁head ▁of ▁the ▁Regiment ▁of ▁Pat r icians , ▁replacing ▁the ▁ban ished ▁Corn el io ▁Sa aved ra , ▁but ▁the ▁troops ▁did ▁not ▁accept ▁him ▁and ▁started ▁the ▁Bra ids ▁Mut iny . ▁After ▁that , ▁the ▁Tri um vir ate ▁requested ▁that ▁he ▁fort ify ▁Ros ario ▁against ▁possible ▁royal ist ▁attacks ▁from ▁the ▁Band a ▁Oriental . ▁Bel gr ano ▁created ▁two ▁batter ies , ▁" Ind ep endencia " ▁(" Ind ep end ence ") ▁and ▁" Li bert ad " ▁(" Fre edom "). ▁After ▁real ising ▁that ▁both ▁patri ots ▁and ▁royal ists ▁were ▁fighting ▁under ▁the ▁same ▁colours , ▁he ▁created ▁the ▁co ck ade ▁of ▁Argentina , ▁of ▁light ▁blue ▁and ▁white , ▁the ▁use ▁of ▁which ▁was ▁approved ▁by ▁the ▁Tri um vir ate . ▁The ▁reasons ▁for ▁the ▁colours ▁are ▁usually ▁considered ▁to ▁be ▁either ▁loyal ty ▁to ▁the ▁House ▁of ▁Bour bon ▁or ▁his ▁este em ▁of ▁the ▁Virgin ▁Mary . ▁Bel gr ano ▁created ▁a ▁flag ▁with ▁the ▁same ▁colours , ▁which ▁was ▁ho isted ▁at ▁Ros ario ▁near ▁the ▁Par an á ▁River ▁on ▁ 2 7 ▁February ▁ 1 8 1 2 . ▁On ▁that ▁same ▁day ▁he ▁was ▁appointed ▁to ▁replace ▁P ue yr red on ▁in ▁the ▁Army ▁of ▁the ▁North , ▁so ▁he ▁travel led ▁to ▁Y at asto . ▁He ▁found ▁dem oral ised ▁officials , ▁nearly ▁ 1 , 5 0 0 ▁soldiers ▁( a ▁quarter ▁of ▁them ▁hospital ised