Military ethics and values are critical for all Defence personnel. The society holds us to a higher standard than the wider community; and rightly so. We should be a beacon of virtue upon which the country can rely on in times of need. Military operations often present ethically challenging situations that demand greater depth of maturity. While military and international law is starting points for our decision processes, we all need to have a robust understanding of moral codes and ethical frameworks to help us resolve dilemmas or challenging situations. Furthermore, simply studying the theory of these concepts does not make us ethical. Like all aspects of Social Mastery, the theory is just the beginning. To achieve Professional Mastery, we must constantly strive to improve ourselves; and in the case of ethics, this means internalising our belief systems to the point where they are instinctive.