The Human Order of Guardians was formed not long after the original Guardians. As Pitch uses his Descendants to his advantage, the Descendants of the Guardians had to band together to combat them.
HOG is one of the only groups that has all of its members learn to fight. One of the other groups is the Descendants of Pitch.
While all individuals in HOG are trained once they join (it is optional, but very few opt out) they are not allowed to go into the field until they are 18. This rule is often bent, especially in an emergency, but officially you cannot go out into the field until you are 18 years old.
In HOG, each Descendant group is represented by a Head, they are the highest authority in HOG.
Because each Descendant group in HOG existed before they came together, they each have their own symbol as well as a group symbol, both of which are on their cloaks. Their cloaks are still different colours to each other. The only exception is the Descendants of North, but they got to pick a col