We evaluated the measurement properties of a new personality scale for use with military personnel in the French Navy (N = 1,266). Principal components analyses indicated a five-factor structure assessing emotional stability, ascendancy, openness, agreeableness, and conscientiousness. Each factor comprised two facets that included 7 items per facet for a total of 70 items. Reliability analyses indicate that the factors and corresponding facets were internally consistent and temporally stable. Validity analyses indicate that the TAMI-P was significantly correlated with comparable measures of personality—correlations ranged from .53 to .68 with the Revised NEO Personality Inventory and the Big Five Questionnaire.