The Ukrainian Air Force's F-16 fighter jets fly in an undisclosed location in Ukraine, Sunday, Aug. 4, 2024. The F-16 fighter jets that have been delivered to Ukraine by Western countries will be flying sorties in Ukrainian skies and helping the country's current fleet of Soviet-era jets to counter Russia's invasion. (AP Photo/Efrem Lukatsky)
The Ukrainian Air Force's F-16 fighter jet flies in an undisclosed location in Ukraine, Sunday, Aug. 4, 2024. The F-16 fighter jets that have been delivered to Ukraine by Western countries will be flying sorties in Ukrainian skies and helping the country's current fleet of Soviet-era jets to counter Russia's invasion. (AP Photo/Efrem Lukatsky)
A Ukrainian officer stands in the guard of honour against the background of Ukraine's Air Force's F-16 fighter jets in an undisclosed location in Ukraine, Sunday, Aug. 4, 2024. The F-16 fighter jets that have been delivered to Ukraine by Western countries will be flying sorties in Ukrainian skies and helping the country's current fleet of Soviet-era jets to counter Russia's invasion. (AP Photo/Efrem Lukatsky)
Ukraine's President Volodymyr Zelenskyy talks on the occasion of the Air Forces Day standing against the background of Ukraine's Air Force's F-16 fighter jets in an undisclosed location in Ukraine, Sunday, Aug. 4, 2024. The F-16 fighter jets that have been delivered to Ukraine by Western countries will be flying sorties in Ukrainian skies and helping the country's current fleet of Soviet-era jets to counter Russia's invasion. (AP Photo/Efrem Lukatsky)
The Ukrainian Air Force's F-16 fighter jet flies in an undisclosed location in Ukraine, Sunday, Aug. 4, 2024. The F-16 fighter jets that have been delivered to Ukraine by Western countries will be flying sorties in Ukrainian skies and helping the country's current fleet of Soviet-era jets to counter Russia's invasion. (AP Photo/Efrem Lukatsky)
The Ukrainian Air Force's F-16 fighter jets fly in an undisclosed location in Ukraine, Sunday, Aug. 4, 2024. The F-16 fighter jets that have been delivered to Ukraine by Western countries will be flying sorties in Ukrainian skies and helping the country's current fleet of Soviet-era jets to counter Russia's invasion. (AP Photo/Efrem Lukatsky)
Ukraine's President Volodymyr Zelenskyy hands over the flag of a military unit on the occasion of the Air Forces Day against the background of Ukraine's Air Force's F-16 fighter jets in an undisclosed location in Ukraine, Sunday, Aug. 4, 2024. The F-16 fighter jets that have been delivered to Ukraine by Western countries will be flying sorties in Ukrainian skies and helping the country's current fleet of Soviet-era jets to counter Russia's invasion. (AP Photo/Efrem Lukatsky)
The Ukrainian Air Force's F-16 fighter jets fly over a Patriot Air and Missile Defense System in an undisclosed location in Ukraine, Sunday, Aug. 4, 2024. The F-16 fighter jets that have been delivered to Ukraine by Western countries will be flying sorties in Ukrainian skies and helping the country's current fleet of Soviet-era jets to counter Russia's invasion. (AP Photo/Efrem Lukatsky)
Ukraine's President Volodymyr Zelenskyy talks on the occasion of the Air Forces Day standing against the background of Ukraine's Air Force's F-16 fighter jets in an undisclosed location in Ukraine, Sunday, Aug. 4, 2024. The F-16 fighter jets that have been delivered to Ukraine by Western countries will be flying sorties in Ukrainian skies and helping the country's current fleet of Soviet-era jets to counter Russia's invasion. (AP Photo/Efrem Lukatsky)
The Ukrainian Air Force's F-16 fighter jet flies in an undisclosed location in Ukraine, Sunday, Aug. 4, 2024. The F-16 fighter jets that have been delivered to Ukraine by Western countries will be flying sorties in Ukrainian skies and helping the country's current fleet of Soviet-era jets to counter Russia's invasion. (AP Photo/Efrem Lukatsky)
Ukraine's President Volodymyr Zelenskyy awards pilots on the occasion of the Air Forces Day against the background of Ukraine's Air Force's F-16 fighter jets in an undisclosed location in Ukraine, Sunday, Aug. 4, 2024. The F-16 fighter jets that have been delivered to Ukraine by Western countries will be flying sorties in Ukrainian skies and helping the country's current fleet of Soviet-era jets to counter Russia's invasion. (AP Photo/Efrem Lukatsky)
Ukraine's President Volodymyr Zelenskyy answers media questions standing against the background of Ukraine's Air Force's F-16 fighter jets in an undisclosed location in Ukraine, Sunday, Aug. 4, 2024. The F-16 fighter jets that have been delivered to Ukraine by Western countries will be flying sorties in Ukrainian skies and helping the country's current fleet of Soviet-era jets to counter Russia's invasion. (AP Photo/Efrem Lukatsky)
Ukraine's President Volodymyr Zelenskyy answers media questions standing against the background of Ukraine's Air Force's F-16 fighter jets in an undisclosed location in Ukraine, Sunday, Aug. 4, 2024. The F-16 fighter jets that have been delivered to Ukraine by Western countries will be flying sorties in Ukrainian skies and helping the country's current fleet of Soviet-era jets to counter Russia's invasion. (AP Photo/Efrem Lukatsky)
The Ukrainian Air Force's F-16 fighter jets fly in an undisclosed location in Ukraine, Sunday, Aug. 4, 2024. The F-16 fighter jets that have been delivered to Ukraine by Western countries will be flying sorties in Ukrainian skies and helping the country's current fleet of Soviet-era jets to counter Russia's invasion. (AP Photo/Efrem Lukatsky)
The Ukrainian Air Force's F-16 fighter jets fly in an undisclosed location in Ukraine, Sunday, Aug. 4, 2024. The F-16 fighter jets that have been delivered to Ukraine by Western countries will be flying sorties in Ukrainian skies and helping the country's current fleet of Soviet-era jets to counter Russia's invasion. (AP Photo/Efrem Lukatsky)