What was the largest problem faced by US troops and dependents in heavy military-based areas?

I believe, due to my own similar experience, that the most common probelem would have been finding suitable housing for the family. Any time that you have a large buildup of soldiers in a area, land lords would immediately start raising rent. Patriotism is one thing to Americans, but American landlords are after the buck. Only higher ranking officers could afford decent housing and lower ranking soldiers and their families would have to pay a months pay for a dump. And the landlords know every ranks payscale.