I forgot about that. My take: You either draw a stipend that supports a middle-class family or if not needed, nothing. Volunteer is not another word for making money. I know, because I've done many times over since retiring in 1997. I've never asked for a penny. In fact, I've given much of my money and time not expecting anything other than the occasional Thank You. Didn't even need that. It was my duty.
The following is a list and rankings of the best and worse of Military/Veterans charities by the American Institute of Philanthropy. As I said above, who knows which charity site is more accurate, but I tend to agree with this list. Look at the A and A+ organizations.
http://www.military-money-matters.com/charities-ratings.html#axzz4I5f8ZtyL