The reality didn’t match a computer simulation and a lot of Ukrainian soldiers died. From Scott Ritter at azerbaycan24.com:
Ukraine sent one of its best brigades into combat earlier this month as part of its long-awaited counteroffensive aimed at retaking areas controlled by Russian forces.
Leading the charge near the town of Orekhov, in Zaporozhye Region, was the 47th Mechanized Brigade, armed with NATO equipment and – most importantly – employing it using the US-led bloc’s combined arms doctrine and tactics. Prior to the operation, this brigade spent months at a base in Germany learning “Western know-how” in combined-arms warfare.
Helping them prepare for the fighting to come was KORA, the German-made NATO computer simulation system, designed to allow officers and non-commissioned officers to closely replicate battlefield conditions and, in doing so, better develop ideal courses of action against a designated enemy – in this case, Russia.
If there was ever an example of how a purpose-built Ukrainian NATO proxy force would perform against a Russian enemy, the 47th Brigade was the ideal case study. However, within days of initiating its attack, the group was close to literally decimated, with more than 10% of the over 100 US-made M-2 Bradley infantry fighting vehicles destroyed or abandoned on the field of battle, and hundreds of the brigade’s 2,000-strong complement dead or wounded. German-made Leopard 2 tanks and mine-clearing vehicles joined the Bradleys as wrecks in the fields west of Orekhov, having failed to breach the first line of Russian defenses. The reasons for this defeat can be boiled down to the role played by KORA in creating a false sense of confidence on the part of the officers and men of the 47th Brigade. Unfortunately, as the Ukrainians and their NATO masters found out, what works in a computer simulation does not automatically equate to battlefield success.
