After being accused of using the food supply as blackmail and a bargaining chip, Russia said Wednesday its military will open up protected sea corridors for international shipping to pass through from seven Ukrainian ports that have thus far been blockaded. According to a defense ministry statement reported by Bloomberg late in the day, “Humanitarian maritime corridors from ports on the Black Sea and Azov Sea, including Odesa, will operate from 8 a.m. to 7 p.m. daily.” Black Sea port of Constanta, Romania recently had a drifting mine nearby. Image: AlamyThe announcement comes two days after the head of the...