i'm sure his complaints are right on target, but like you say it's completely understandable.. this trench battle has a ton of new elements that both sides are adding to the global tactical lexicon on a daily basis.. there's no training base in the world capable of getting people up to speed on current conditions there.. a big proportion of the effective responses to those conditions are brand new and being learned in the field for the first time.. the Ukrainians are the experts who should be training everyone else now..