These smaller flat rate boxes I am using seem to get there faster than larger heavier boxes (not so easy to tuck into space available).
Some boxes recently got to Iraq in 8 days that were mailed from U.S. West Coast. That's a record.
It may be their delivery system have improved (I heard they had contracted with FedEx or someone to do a lot of their mail) or they don't happen to be in a major redeployment now and haven't as much gear and munitions taking up space on the flights.
Thanks for the info.