My understanding is that they distribute funds as they are requested by qualified applicants. If they're not distributing, that seems to imply that there is less need - which would make a lot of sense, given that deployments tend to be great opportunities for Soldiers to save cash, pay off debt, and stay out of trouble. I say, good idea to keep stockpiling. At some point, given this economy, spouses are going to be getting laid off from work and education won't get any cheaper. There may be a surge of legitimate need down the road.
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