Some of those items are being donated.
In some cases, it is cheaper to replace them than to ship them back.
That was the reason we gave the ISF 8,500 M1114s.
We were replacing this earlier version of the uparmored HMMWV with M1151/1152s. The earlier versions did not have a beefed up enough suspension.
Cheaper to give them away than to ship and junk them...
I still think we should donate older F16/F18s to Iraq and buy new birds for replacements. It would be a better stimulus program than what was passed. Think of all the jobs in the aviation industry....
There are so many containers here in the U.S. that they are causing problems. The surplus stuff could be sold in place letting the buyer move it.