A destroyed Russian Su-34 fighter jet in Lyman, Ukraine on October 5. Metin Aktas/Anadolu Agency via Getty Images Limited numbers of guided air-to-ground munitions hinder Russia’s ability to conduct airstrikes. However, more potent air-to-air missiles are helping Russian jets keep Ukrainian aircraft at bay. Both sides are using air-launched weapons at a rate that is striking to experts observing the war. Russia’s air force is…