Ukraine grain deal signed: Why it matters

Ukraine, Russia, Turkey and the UN signed a much-anticipated deal on Friday that paves the way for the resumption of Ukrainian grain shipments from Black Sea ports.
What deal has been reached?
While not all details of the agreement have been revealed, shipments from Ukrainian ports will begin in full in a couple of weeks, according to the UN. The ports will reportedly not be fully demined and the Ukrainian Navy and Coast Guard captains will be allowed to escort ships avoiding mined waters. Officials from Russia and other countries...