: ▁create ▁the ▁Army ▁of ▁the ▁And es ▁at ▁C uy o ▁and , ▁after ▁making ▁the ▁Cross ing ▁of ▁the ▁And es , ▁defeat ▁the ▁royal ists ▁in ▁Chile , ▁get ▁control ▁of ▁the ▁Chile an ▁n avy , ▁and ▁attack ▁the ▁royal ist ▁strong hold ▁of ▁Lima ▁with ▁it . ▁ ▁Last ▁years ▁ ▁In ▁ 1 8 1 9 ▁Buenos ▁Aires ▁was ▁at ▁war ▁with ▁José ▁Ger vas io ▁Art ig as ▁and ▁Est an is la o ▁López , ▁and ▁requested ▁San ▁Martín ▁and ▁Bel gr ano ▁to ▁return ▁with ▁their ▁arm ies ▁to ▁take ▁part ▁in ▁the ▁conflict . ▁San ▁Martín ▁refused ▁to ▁do ▁so , ▁but ▁Bel gr ano ▁accepted . ▁However , ▁before ▁his ▁arrival ▁the ▁govern ors ▁Est an is la o ▁López ▁and ▁Juan ▁José ▁V iam onte ▁signed ▁an ▁eight - day ▁tr uce ▁to ▁start ▁peace ▁negoti ations . ▁Bel gr ano ' s ▁health ▁was ▁in ▁a ▁very ▁bad ▁state ▁by ▁this ▁point , ▁but ▁he ▁refused ▁to ▁res ign , ▁thinking ▁that ▁the ▁mor ale ▁of ▁the ▁Army ▁would ▁suffer ▁without ▁his ▁presence . ▁He ▁moved ▁to ▁the ▁front ier ▁between ▁Santa ▁Fe ▁and ▁C ór dob a , ▁from ▁where ▁he ▁would ▁be ▁able ▁to ▁move ▁to ▁either ▁the ▁l itor al ▁or ▁the ▁north ▁if ▁needed . ▁His ▁health ▁continued ▁to ▁w ors en , ▁and ▁he ▁was ▁given ▁an ▁un limited ▁leave ▁from ▁work ▁by ▁the ▁Supreme ▁Director . ▁He ▁handed ▁command ▁to ▁Fernández ▁de ▁la ▁Cruz