I cannot say for sure with Zaza’s group, but generally speaking, adopting a soldier means writing every few weeks (more if possible; minimum of once a month), periodically sending “care packages” and generally letting your military person know someone cares. I belong to the group http://www.operationmilitarypride.org/
and you can find more info there.

For those of us who cannot go and stand with them there in The Sand Box, this is one way we can show our support.

Bless our Troops and Those That Wait for Them, for They Also Serve.