In the south , Army Group A captured Rostov on 23 July .
In the south , Army Group A swept south from the Don to the Caucasus , capturing the demolished oilfields at Maikop on 9 August and Elista on 13 August near the Caspian Sea coast .
In the south , Army Group A captured Rostov on 23 July and swept south from the Don to the Caucasus , capturing the demolished oilfields at Maikop on 9 August and Elista on 13 August near the Caspian Sea coast .