We explored the predictive power of the Person-in-the-Rain drawing test (PITR) as an alternative psychological test for understanding and evaluating soldiers' unit cohesion. The participants were 204 conscript soldiers who serve a mandatory military service. They completed the PITR and the Unit Cohesion Scale. We analyzed the data using descriptive statistics, correlation analysis and multiple regression analysis. As a result, the PITR resource score and the coping capacity score correlated positively with unit cohesion. The regression analysis confirmed that the PITR resource score had a statistically significant influence on unit cohesion. This study provides empirical evidence to support the possibility of using PITR as a projection test to predict soldiers' unit cohesion.