Russian invasion runs into stiff resistance, supply lines 'definite vulnerability,' US officials say
From Jim Sciutto and Oren Liebermann
Russia's invasion of Ukraine is encountering "stiffer than expected" resistance from the Ukrainian military as well as unexpected difficulties supplying its forces, two senior US officials with direct knowledge tell CNN.
On the battlefield, Russia is suffering heavier losses in personnel, armor and aircraft than expected. This is due, in part, to the fact Ukrainian air defenses have performed better than anticipated in pre-invasion US intelligence assessments. In addition, Russia has yet to establish air supremacy over Ukraine, a senior defense official said, as the Ukrainian Air Force and air defense systems fight for control of the airspace.
Ukrainian air defenses, including aircraft, do continue to be operable and continue to engage and deny access to Russian aircraft in places over the country,” the official said.
Without uncontested control of the skies, it becomes more difficult for an army on the move to see and strike targets from the air.
Officials caution this picture of the battlefield is just a moment in time, and the situation on the ground could change very quickly as Russian forces keep up their assault.
The Ukrainian military has a number of different anti-aircraft weapons, including radar-guided and heat-seeking missiles, as well as anti-aircraft guns, according to IHS Janes. The US has also provided Stinger anti-aircraft missiles in recent weeks, as have other NATO allies.
As of Saturday evening, the US had not seen any indication the Russian military has taken control over any Ukrainian cities, the official said, even as Russian forces have moved to surround some population centers, including the capital of Kyiv.