Eyes are on the skies in Ukraine, with the country's air defences becoming all the more critical as Russia continues to hammer cities and energy infrastructure with a barrage of missile strikes.
Over the past two weeks, Moscow has unleashed its largest wave of missile and kamikaze drone attacks since the start of the nine-month war.
A senior Pentagon official has cautioned that Moscow is attempting to deplete Ukrainian air defences which have so far prevented the Russian military from establishing dominance of the skies above the country.
