- Russia's air force has an edge over Ukraine's aircraft, requiring Ukraine to rely on other capabilities.
- Fighting off Russia's air force is dependent on Ukraine's surface-to-air missiles, a new report says.
- But leaked US intelligence shows that Ukraine's SAM inventory has reached critical levels.
Ukraine's ability to keep Russia's superior air force at bay relies heavily on its inventory of surface-to-air missiles, a new report argues, but leaked US intelligence documents indicate Kyiv's air defenses could be in trouble, making support from its partners critical.