I believe Victor mentioned something about some European tubes, possibly Dutch. If I were a betting man I would say that maybe the English and Israelis have access to US made NVD. But I may be wrong. Russain and Chinese would be crap, most of that Gen 1 stuff on the market when I was looking at it a few years ago was Ukranian. IIRC the "gen1" ruskie stuff would have been a "gen0" on the American scale. The 2 samples I saw had specs of stuff on the tube, and required lots of ambient light or the IR illuminator. That was probably a good thing since the IR illuminator was constantly on.
I highly recommend saving up and buying the US made stuff, either a MUM (mini-14) or PVS-14 from Victor. The PVS-14 with the hand select tube would be the way to go. I bought a hand select MUM from Victor and I was and still am thoroughly impressed with its performance.
And by the time you got the Euro stuff here if you could , would it still be a bargain?