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FILE - Smoke rises from the front lines where fierce battle is going between Ukrainian and Russian troops, farmer fields in the foreground, in the Dnipropetrovsk region, Ukraine, Monday, July 4, 2022. Military officials from Russia and Ukraine are set to hold a meeting in Istanbul to discuss a United Nations plan to export blocked Ukrainian grain to world markets through the Black Sea. RussiaâÄ™s invasion and war disrupted production and halted shipments of Ukraine, one of the worldâÄ™s largest exporters of wheat, corn and sunflower oil. (AP Photo/Efrem Lukatsky)