After successes of the Syrian Army in capturing Khan al-Shih and Wadi Barada valley pockets, and reconciliation agreements in Madaya and Zabadani, Beit Jinn remained the last holdout of opposition forces in Western Ghouta.

[1] On 28 November, government forces captured the eastern side of the strategic Bardiyah mountain chain in the besieged Beit Jinn pocket, southwest of Damascus and near the Golan Heights, which is controlled by rebel fighters.

[17] In the morning of 11 December, at 9:30 am, the Syrian army began operations in Western Ghouta to ensure fire control over Beit Jinn.

[20] The next day, the Syrian army begun the process of isolating rebel-held Maghar Al-Mir[21] and managed to capture two more hilltops.

[22] On 14 December, led by the 42nd Armoured Brigade, the Syrian Arab Army launched a major offensive against rebels on the tallest hilltop in the area, Tal Al-Bayda.

By taking over positions around Tal al-Ahmara, the Syrian Army asserted fire-control over the roadway that connects the towns of Beit Saber and Maghar al-Mir.

[34] SAA, Hezbollah and Iranian-backed Shia and Druze militias encircled Maghar Al-Mir and advanced towards Beit Jinn, assisted by heavy aerial strikes.