Physical fitness is a key element of military readiness. This study compared performance in the 12-minute run and upper-body strength tests between University of Defence students and active-duty soldiers from Land Forces, Air Forces, and the Airborne Regiment (data 2023–2025, age 20–30 years). University of Defence students significantly outperformed Land Forces and Air Forces personnel in the 12-minute run in both sexes. In upper-body strength, students achieved comparable or slightly better results than Land and Air Forces. The Airborne Regiment remained a distinct elite group, recording the highest performance in all disciplines. Performance was highly stable across the three-year period. The results indicate that military university students demonstrate physical fitness levels comparable to or exceeding those of regular active-duty soldiers, while still falling short of the standards of the Airborne Regiment.