What Ukraine must do to win in its southern push — and what Russia has in reserve

The Ukrainian military is doubling down on efforts to break through thick Russian defenses in its counteroffensive in the south, which has struggled to gain momentum since being launched at the beginning of June.

​CNN.com – RSS Channel The Ukrainian military is doubling down on efforts to break through thick Russian defenses in its counteroffensive in the south, which has struggled to gain momentum since being launched at the beginning of June. 

​Read More The Ukrainian military is doubling down on efforts to break through thick Russian defenses in its counteroffensive in the south, which has struggled to gain momentum since being launched at the beginning of June.