Ukraine's Reliance on Western Air Defense Systems

Ukraine is likely to have significant reliance on Western air defenses. Air defense as well, although that's highly complicated. I should clarify too earlier when I said that Ukraine may consider doing to its lines what Russia has done to its side. And in fact, some of those fortifications do exist in the Donbas region. For example, the small village of Difka that has been part of the Russian assaults since 2014.