A quote from Carl Jung on the subject of "masks":
The persona, for Swiss psychologist Carl Jung, was the social face the individual presented to the world—"a kind of mask, designed on the one hand to make a definite impression upon others, and on the other to conceal the true nature of the individual".
One wonders what Jung would have thought about the masks created by these veterans (see link below) as their intent in creating them was to reveal, rather than to conceal, aspects of their true nature as individuals.