Job Stress in organizations is among the current problems at the global level which has received attention since the industrial revolution, promotion of mass production and development of government institutions and organizations where issues such as health, human values, comfort, stress, failure, frustration, moral crisis and lack of sense of success. As an applied, descriptive and field study, this research involved military commanders and managers from an Iranian military setting (I.e. 03 Ajabshir), who answered a questionnaire. The data were analyzed based on Pearson-product correlation coefficient. The findings revealed that Job Stress is caused and mainly affected by: Job satisfaction, organizational factors (environmental factors, role contradiction, role ambiguity and work load), non-Job factors (family and social affairs), personal factors, and mental as well as physical pressures. Conclusively, Job stress and satisfaction correlated 0.78, while the highest correlation rate (I.e. %54) was related to personal stress and the lowest was that of Job stress. Meanwhile, there was positive correlation between organizational, non-Job, personal and behavioral factors of stress and the commanders and managers job stress.