Speaking on Al-Jazeera Television today, Jabr called insurgents to join security forces in order to bring the withdrawal closer.
Also today, Iraq's Foreign Ministry said a national reconciliation conference, expected to take place in late February or early March in Baghdad, will decide on and call for a timetable for withdrawing foreign troops from the country.
The decision was reached on 20 November at an Arab League-sponsored meeting in Cairo.
Today, at least four civilians were killed when a car bomb blew up today in Kanan, northeast of the capital Baghdad.
In the capital, three people, including one police officer, were killed by gunmen.