Jet-powered bombs and planes-turned-missiles: Ukrainian and Russian militaries improvise and adapt in a battle of wits

By Tim Lister, Victoria Butenko, Kosta Gak, CNN (CNN) — Improvise and innovate have become the watchwords for both the Russian and Ukrainian militaries as they try to outwit each other on the ground, at sea and in the air. Several recent developments illustrate this constant evolution of tactics and weaponry: a new Russian jet-powered