Final answer:
Marines who fail to meet BCP standards due to apathy are initially given additional training but can face discharge if non-compliance persists. Military discipline is fundamental for an army's effectiveness.
Step-by-step explanation:
When Marines fail to comply with Body Composition Program (BCP) standards due to apathy, they do not receive a promotion or a simple warning. Initially, they may be provided with additional training or counseling to help them meet the required standards. However, continued failure to comply with BCP standards can lead to more serious repercussions, such as being placed on probation or being discharged from the Marines. Discipline and adherence to standards are crucial in military settings, as emphasized by historical military texts, which suggest that the strength of an army is dependent on the enforcement of commands and the relationship between officers and their troops.