With little movement on the front lines in Ukraine, both sides are focusing their efforts on air strikes: Ukraine has decimated capacities at oil refineries in Russia with its drone attacks, dealing a severe blow to online retail and paralysing shipping traffic along the southern coast. Meanwhile, Moscow has launched massive missile strikes in Ukrainian cities: on Wednesday, 17 people were killed in attacks on logistics centres in the Kyiv area.JOIN US ON TELEGRAMFollow our coverage of the war on the @Kyivpost_official. Interceptors used up The Spectator worries about Ukraine’s increasingly unprotected airspace: “Ukraine’s inability to stop incoming ballistic missiles – especially Zircon and Kindzhal hypersonic missiles that [are said to] travel at up to nine times the speed of sound – is a fundamental strategic flaw that the Kremlin is exploiting mercilessly. ... That the skies over Ukraine are now open to ballistic attack is [due to the fact] that Kyiv’s arsenal of US-made PAC-3 Patriot interceptors is used up – and there’s little prospect of any more coming because the US has used up almost all its own reserves defending against Iranian missiles.” Achilles’s heel must be protected Political scientist Alvydas Medalinskas warns on LRT: “Of course, Ukraine has dealt a severe blow to Putin’s Russia. Crimea remains pretty isolated and more than 40 percent of the Russian oil industry has been paralysed. The war has entered a phase of mutual testing of strength. Both sides are dealing each other significant blows. ... Yet while acknowledging Ukraine’s strength, we must not overlook its Achilles’ heel: ballistic missile defence. If the necessary measures are not taken swiftly in this area, the tide of the war could turn once again, to the detriment of Ukraine and the West.”