The Kyiv Independent's Francis Farrell and Olena Zashko spent a day with an artillery crew from the 28th Mechanized Brigade in the front-line city of Kostiantynivka, Donetsk Oblast, in early July. As Russia's summer offensive heats up, the brigade's sector has become one of the hottest parts of the front line. Following the recent decision by the U.S. Department of Defense to halt shipments of certain weapons to Ukraine — including 155mm artillery rounds — a looming shell shortage is once again