Rubuta ci gaba ga wannan sakin layi - Gaius Crastinus (c. 85 BC <unk> 48 BC) ya kasance soja a cikin rundunar Julius Kaisar ta 10 a lokacin Yaƙin Gallic. Ya fara shiga ko dai 8th ko 9th legion a 65 BC, lokacin da Pompey Magnus ya fara tayar da waɗannan rundunonin biyu a Spain. An canza shi zuwa rundunar ta 10 a matsayin ƙaramin ƙarni a shekara ta 61 kafin haihuwar Yesu lokacin da aka fara kafa shi, bayan da Kaisar ya zaɓe shi. Bayan ya shiga runduna ta 10, ya jagoranci karni. Crastinus ya yi yaƙi a duk lokacin yakin da Kaisar ya yi na Gallic, kuma yana nan a yakin Alesia
, inda ya shaida mika wuya na shugaban Gallic Vercingetorix ga sojojin Jamhuriyar Roma. A farkon yakin, Crastinus ya umurci ƙungiyarsa yayin da ta mayar da ƙoƙarin ƙetare kogin da Helvetii. Crastinus, wanda Kaisar ya ɗauke shi a cikin mafi kyawun sojojinsa, Kaisar ya ɗaukaka shi zuwa matsayin Primus Pilus, ko "First File" Centurion. Wannan matsayin ya kasance mai daraja sosai, tun da yake centurions na wannan matsayi ya umurci na farko ("primus"), kuma mafi muhimmanci, karni a cikin Legion. Tare da wannan matsayi, Crastinus zai kuma fi duk sauran jarumawa a cikin rundunarsa, domin shi ne matsayi mafi girma na kowane soja na Roma.