 Ramba uchiverenga ndima iyi - Akanga akaendeswa kuCuba, akanyoresa kuti apinde muboka raitungamirirwa naGeneral Prim muMexico muna 1862, kunyange zvazvo akapedzisira agara muCuba. Akazotumirwa kuSanto Domingo, uye akatora chikamu pakurwiswa nekugara kweSantiago de los Caballeros, kudzoka kubva kuPuerto Plata, uye mabasa ehondo muSan Cristóbal, Baní neAzúa, kurwisa nekudzivirira kweMonte Christi nezvimwe, achiwana chinzvimbo chekaputeni. Akashanda somudzidzisi weGeometry neTopography paHavana Military Academy, uye, apo Hondo yeCuba yakatanga, akatanga mushandirapamwe unouraya weCuba, akaunganidza boka duku revazvipiri rainzi Primera Guerrilla Volante. Achitungamirira simba rakataurwa, Cassola akapinda mumabasa mazhinji ehondo, kusanganisira La Mercedes, Santa Gertrudis, Sancti Spíritus kana Meloncitos, kusvikira arwara pamutsetse wepamberi weTrocha kubva kuMorón kuenda kuJúcaro. Ipapo akadzokera kunyika huru muna December 1871, aine chinzvimbo chaLieutenant Colonel uye aine chikwangwani chitsvuku cheMilitary Merit. 