However, the overall advance was quite modest and slow in the face of heavy German resistance, and the operation was therefore accomplished in three stages: 7–20 August, 21 August–6 September, and 7 September–2 October.
但是整個進攻因德軍的頑強抵抗令進展相當有限和緩慢的，因此行動分成3個階段完成：8月7日至20日、8月21日至9月6日及和9月7日至10月2日。