Warning here: we did this last month and received a 80% romance novels, and about 10% childrens books. Now I know there are women in service now, but really.... So tell people what kind of books you are looking for.
I'm sure the troops will appreciate any kind of attention, but here's what would be optimal: science-fiction, fantasy, mystery, true crime, horror, general fiction, military history (especially about the British colonial Middle East), Middle-Eastern History/Culture especially books about the Babylonian/Tigris Valley and history of Islam and Arabia, also anything about the Kurds. In addition, thrillers and action/adventure stories by authors such as Tom Clancy and W.E.B. Griffin are always well received.
Thanks
My guess is that women do most of the leisure time reading in this country. Which explains the books you received.