Well, some progress.

In the Microsoft DirectX SDK there is a MeshConverter.exe located in C:\Program Files\Microsoft DirectX SDK (June 2010)\Utilities\Bin\x86\

I copied the MeshConverter.exe to a folder with the .x files. Then I ran this command: meshconvert /x H-Iraq-Idle.x /o Iraq-Idle-Bin.x

(The /x switch is to make a binary .x file while the /xt switch is to make a text .x file. MED read both the binary and text versions fine.)

The MED was able to read the .X (binary) file and I exported to a MDL type. WED read the MDL file but GED crashed when trying to load it for some reason.

I also tried the command: meshconvert /x /a H-Iraq-Idle.x /o Iraq-Idle-Bin-Anim.x

The /a switch is supposed to export the animation, but MED didn't seem to import the animation frames.