The aim of this study was to determine private soldiers' knowledge and attitudes about the use of condoms. This study includes privates discharged from the Zincidere 1st Commando Brigade, Kayseri, Turkiye. This study was composed of volunteers (n = 481) who were present at their Brigade at the time of the research. Data were collected with a questionnaire. It was found that 44.7% of the privates had not used a condom. Reasons for not using a condom included the following: lack of enjoyment and feeling of discomfort, belief in its unreliability and the difficulty of obtaining one. Privates stated that they had knowledge regarding protection against sexually transmitted diseases (95.8%), the importance of always using condoms (84.8%) and the importance of having a single partner (60.7%). The results of this study show that although knowledge of condoms is relatively good, they are not widely used.