AFGHANISTAN, June 22 - Reinforced Russian air-defense systems in eastern Ukraine are increasingly limiting the effectiveness of Ukrainian drones, undermining a key Ukrainian capability in the war. Foreign Policy’s Jack Detsch quoted several anonymous Ukrainian officials and military personnel that Ukrainian forces have largely halted the use of Turkish Bayraktar drones, which were used to great effect earlier in the war, due to improvements in Russian air-defense capabilities. Ukrainian officials are reportedly increasingly concerned that US-provided Gray Eagle strike drones will also be shot down by reinforced Russian air defense over the Donbas. Ukrainian forces have reportedly scaled back air operations to 20 to 30 sorties per day and are facing a deficit of available aircraft for active pilots. Russian forces are likely prioritizing deploying air defenses to eastern Ukraine to nullify Ukrainian operations and to protect the artillery systems Russian forces are reliant on to make advances. However, the Ukrainian air force and armed drones remain active elsewhere, inflicting several successful strikes on targets in Kherson Oblast in the last week.