I would be surprised if when Ukrainian troops went into joint training missions with NATO they never used the M777.
But I doubt they will have a lot of troops trained with that.
Sounds like they might have achieved localized results. But turning those into something with more widespread significance should be a lot harder. And no I wouldn't call learning how to use artillery easy.
I wonder how many are deployed. I still don't suspect it's too many. I think if they had a full battery operating, they would show more. The Ukrainian Army has no problems with showing off all the weapons they are getting. Why not? It is stroking the Western ego and getting them to send more and more.
No, training artillerymen is anything but simple, and anything but short.
But there is a very obvious way around. They didn't have to be trained from the ground up. Physics&mathematics are the same, and guns are more or less the same, too. No need to repeat obvious parts, esp. to those who probably saw more artillery action than most of their instructors.
This is my assumption, they are basically doing conversion training. So you don't need to know all the basics of bearings, centre of arc, elevation, types of fire missions, aiming points, etc. etc. Basically you are just learning to put in the bearing and elevation (which is digital on the M777), you don't even need to turn the gears (also automatic), just check the sight and fire. I'm assuming they are also learning the bare minimum maintenance procedures.
Maybe they sneaked some NATO operators with those M777 back into Ukraine and the front. We have seen more then enough footage of NATO soldiers/mercs fighting along side the ukrainian armed forces.
I thought about that, but even if they do, it'd be minimal. Maybe an NCO here or there for troubleshooting. The actual gunline crew is 7, most of these guys are loading once the gun is put into action. Plus, assuming they are sending trained artillerymen, then these guys already know most of what they are doing. Command Post maybe, since there is no way they can integrate the NATO software on such a short basis, and I highly doubt that NATO/USA is handing over their data on Excalibur and Copperhead to some random Ukrainian programmer to build new (or integrate) firing solution software (as described earlier in the thread)