Original sentence: However, very shortly after the ceasefire was agreed, it collapsed as government and rebel forces exchanged fire with barrel bombs, mortars and machine gun fire.The offensive against Ain al-Fijah continued, and on 19 January, the opposition and the Syrian government reached a ceasefire agreement which included measures to repair the water-pumping station and further outlined steps for the amnesty or evacuation of Barada's opposition fighters
Edited sentence: However, very shortly after the ceasefire was agreed, it collapsed as pro-Assad and rebel forces exchanged fire with barrel bombs, mortars and machine gun fire.The offensive against Ain al-Fijah continued, and on 19 January, the opposition and the Assad regime reached a ceasefire agreement which included measures to repair the water-pumping station and further outlined steps for the amnesty or evacuation of Barada's opposition fighters