'Rescue mission' never came out of my mouth. A TF Baum type of deep raid (90km) would have *zero* chance of success, would get hammered by air power, and deliver the Russians a badly needed tactical victory, on camera. I'm talking about a conventional attack by c.2 UA heavy brigades in the general direction Melitopol; to destroy or rout Russian forces opposite and force a full scale RA relief effort which has every chance of turning into yet another C-Fk and further sapping their strength.