Turkish security members stand guard at Dolmabahce palace where talks between Russian and Ukrainian delegations are expected, in Istanbul, Turkey, Thursday, May 15, 2025. (AP Photo/Dilara Acikgoz)
Ukrainian President Volodymyr Zelenskyy walks down the stairs from his plane upon his arrival at Esenboga airport in Ankara, Turkey, Thursday, May 15, 2025. (AP Photo/Evgeniy Maloletka)
Ukrainian President Volodymyr Zelenskyy, center, leaves upon his arrival at Esenboga airport in Ankara, Turkey, Thursday, May 15, 2025. (AP Photo/Evgeniy Maloletka)
Ukrainian official plane is parked upon the arrival of Ukrainian President Volodymyr Zelenskyy at Esenboga airport in Ankara, Turkey, Thursday, May 15, 2025. (AP Photo/Evgeniy Maloletka)
Journalists work near Dolmabahce palace where talks between Russian and Ukrainian delegations are expected, in Istanbul, Turkey, Thursday, May 15, 2025. (AP Photo/Dilara Acikgoz)
Turkish security members stand guard at Dolmabahce palace where talks between Russian and Ukrainian delegations are expected, in Istanbul, Turkey, Thursday, May 15, 2025. (AP Photo/Dilara Acikgoz)
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Ukrainian President Volodymyr Zelenskyy walks down the stairs from his plane upon his arrival at Esenboga airport in Ankara, Turkey, Thursday, May 15, 2025. (AP Photo/Evgeniy Maloletka)
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Ukrainian President Volodymyr Zelenskyy, center, leaves upon his arrival at Esenboga airport in Ankara, Turkey, Thursday, May 15, 2025. (AP Photo/Evgeniy Maloletka)
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Ukrainian official plane is parked upon the arrival of Ukrainian President Volodymyr Zelenskyy at Esenboga airport in Ankara, Turkey, Thursday, May 15, 2025. (AP Photo/Evgeniy Maloletka)
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Journalists work near Dolmabahce palace where talks between Russian and Ukrainian delegations are expected, in Istanbul, Turkey, Thursday, May 15, 2025. (AP Photo/Dilara Acikgoz)