Military discipline involves training that develops self-control, character, and efficiency for the good of the group. Discipline is important for both military and civilian organizations. Signs of discipline include proper wearing of uniforms and prompt action in emergencies. True discipline demands reasoned obedience and ensures effectiveness of groups. The purpose of discipline is to achieve uniformity and cooperation to attain common goals, and ensure groups can function effectively during normal operations and emergencies. Military courtesy involves forms of politeness like saluting, which is done by raising the right hand to the head until the salute is returned. Proper saluting etiquette depends on factors like whether walking or stationary and whether indoors or outdoors.