大興安嶺山脈
The Transbaikal Front, under Marshal Rodion Malinovsky, was to form the western half of the Soviet pincer movement and to attack across the Inner Mongolian desert and over the Greater Khingan mountains. These forces had the objective to secure Mukden (now Shenyang), then meet troops of the 1st Far East Front at the Changchun area in south-central Manchuria and so end the double envelopment.