I said NATO trained officers, meaning ukrainians using NATO doctrine.
NATO should stop being scared of these imaginary russian red lines, and start drawing some clear red lines themself. Russia is acting opportunistic. All this would not have happend if NATO had involved itself back in 2014.
I presume NATO's going to send the the necessary ammo, spare parts, tank transporters, recovery vehicles and fuel transporters as well as train up the tank crews and a vast army of engineers to keep the things running That's the general idea I would imagine. If they aren't already there that is.