Baku, July 12, AZERTACMilitary delegations from Türkiye, Russia, Ukraine and UN officials will come together in Istanbul on Wednesday to discuss shipment of Ukrainian grain stuck due blockade of Black Sea ports, Turkish Defense Minister Hulusi Akar said on Tuesday, according to Anadolu Agency.Akar said a delegation from the Turkish Defense Ministry earlier visited Moscow and Kyiv to discuss the issue, which has led to a global food crisis.He added that the meetings had yielded positive results so far.