I was inspired by Pinetree's excellent ANZAC soldiers mod to add a bit more soldier background diversity to the game myself. I settled on Israeli soldiers, as given the high level of day-to-day conflict in the Middle East, the fact that the Yom Kippur War is a relatively recent historical event in the Xenonauts setting, and Israel's close ties with the US, I figured that they would be a logical choice for inclusion into Earth's finest. They'll pop up at about the same rate as Japanese soldiers.
This mod adds in Israeli as a usable background for Xenonaut soldiers, with Shayetet 13 (a naval commando unit which specializes in things such as boarding actions, thus making them a logical choice for UFO breaching operations) and the Golani Brigade (a notable Israeli infantry brigade) as potential units of recruitment, with the Yom Kippur War as combat experience.
However, this mod can still be polished some more, and I could use some help. I'm not very knowledgeable about the Israeli military; the above changes are based solely upon some research I've done. If I am incorrect anywhere, I'd love for somebody to let me know.
Also, I'm not very familiar with Jewish naming conventions; as such, I used a random name generator to create the soldiers' names, though I plan on going back and doing more in-depth name research when Wikipedia's back up. :P
In any case, if anyone reading this knows something about common Jewish names, please share so I can change the given names of the soldiers in order to more accurately reflect Israeli traditions.
To install the mod, simply extract the attached .zip archive containing soldiernames.xml and strings.xml into your desura/common/xenonauts/assets directory. Be sure to back up your own soldiernames.xml and strings.xml first!