Another problem is, field units release people from the service before they get their 10 years in. If you get 10 years in the service, you have vested pension rights, if don't,  you get your pension contributions returned, and a handshake, and you are out. This really causes mental stress on the individual , because he has lived with his section, done everything with his section for 10 years in a regimental environmental life. If you haven't achieved a certain rank, or been given a chance to move into a trade ....you are history, it's the facts of life....you can't have a field unit with a bunch of middle age, or older soldiers. These soldiers could be battle hardened veterans, and all it takes is this to cause mental illness .... a lot of these are homeless vets, with mental problems... they gave it all for 10 years, then all of a sudden out on the street, with nothing. This is how the problems start.... an old vet over 80