el: the

ellos: they

en: in

encuentro: encounter, battle

entendiéndose: dealing

enteramente: entirely

entrando: entering,

entregar: to give

entregó: he gave

entre tanto: while

entrerriano: correponding to the Province of Entre Ríos (Argentina)

eran: they were

espeso: thick

esta: this

establecidas: set

estallar: to break out

este: this

éxito: success

expedición: expedition (militar or not)