During Redemption, Americans were evacuated from the city by helicopter taking off from the American Embassy. Jack Bauer took a group of children from the Okavango School into the city, killing several of General Juma's men in the streets as he did so. He reached the embassy and agreed to hand himself over to Frank Trammell in exchange for the children's safety. (24: Redemption)
Early on Day 7, Ule Matobo's fighters were stationed around Mali Baso in three camps. After the U.S. undertook air strikes, the American ground forces joined up with Matobo's troops and liberated the capital. By 6pm EST, Juma's fighters were fleeing the capital and his palace lay in ruins. ("Day 7: 8:00am-9:00am", "6:00pm-7:00pm")
The name Mali Baso was given as the capital of Sangala in "Day 7: 8:00am-9:00am". However, later episodes give Sangala City as the name of the location of the American invasion, but this is not explicitly referenced as the capital.