Well, there's actually a number of different reason's why "No Fear of Fiddler's Green" is always in my signature (at least while I'm in Iraq, I took it down for R&R)
First and fore-mostly, Fiddler's Green is being used in it's cavalry afterlife sense in this case, so it's my rough way of saying that I'm not afraid to die.
Secondly, it's a little beacon of hope for me. I don't know (and I tend to doubt) that there's a Fiddler's Green for me to go to when I die, and I'm certain that I'm not fit for Heaven (how could a place of perfection have someone like me who isn't willing to change his critical flaws?). "I've resigned myself to the very real possibility of my eternal damnation" may be almost a catch-phrase for me, but there's still a chance that I'll end up in a "pleasant purgatory short of hell"
Thirdly, it identifies myself as a cavalryman, which is actually kinda a big deal. I'm a tanker, Military occupational specialty of 19Kilo. We've got a pretty bitter rivalry with Cav. scouts, who are 19Deltas. Officially, only the 19Deltas get to claim all the heritage and lore of cavalry, but I'm one of the Tanker's who care enough to call BS on the whole deal. Horse cavalry had two traditional functions, use as a scouting force, and use in direct battle. Cav scouts are clearly descended from the scouting functions, but they don't do much similar to the job of a line of heavy dragoons charging an enemy formation. Tankers, however, do. Heavy cavalry utilized Maneuver and Shock Effect to break enemy lines, we use Fire, maneuver, and shock effect. The Abrams is just as deserving of a descendant of the horse as the M3 model Bradley.
Still doing okay enough here. Lots of work lately. Got to move all the gym tents. Again. Then play Tetris with the machines. I'll show the pictures once I next get to a wireless connection.