Earth filled wicker camp or fort walls

[M. Demetrius]

You're right, Ron, there's not a lot of problem with excess water in the desert. Heh.

I have seen a picture in Osprey (admittedly, this is art, not automatically history) of soldiers building a ditch and berm, with wicker panels on top. They were rectangles, and alternated short and taller, fastening them against posts like modern fence panels. I imagined the slats to be fairly thick, not like baskets, and likely pretty good protection against sling stones, javelins and spears. But no explanation was given iirc, about how they were fastened together to the frames.