Determining the components of body composition is a necessity when evaluating the fitness of the Colombian military personel.Therefore, a cross-sectional observational study was proposed in which each of the body composition variables of students in the last level of military training was determined and compared.The study was carried out in three of the Colombian Army's schools where officers, non-commissioned officers, and professional soldiers are trained.The indirect method of electrical bioimpedance was used to measure body composition.The students' ages ranged from 18 to 25 years, with an average of 21 ± 1.5 years.Their average weight was 66.3 ± 7.9 kg, and their average body mass index was 23.2 ± 2.16 weight kg/height 2 .The results showed a prevalence of 19.3% (n = 26) overweight (BMI ≥ 25) in the sample; 80.1% (n = 109) of the participants were of normal weight, according to WHO criteria.The Body Mass Index (BMI) was similar in students from the three training schools (ESMIC 23.65 ± 2.3 kg/m 2 ; EMSUB 23.41 ± 2.4 kg/m 2 ; and ESPRO 22.57 ± 1.4 kg/m 2 ).The absolute value of fat mass in the ESPRO students showed lower weight in fat than the