Aes Sedai
The 200 "Asha'man" create a dome of Air around the wagons, to keep the remaining Shaido Aiel out. Some Asha'man are holding 23 Tower Aes Sedai hostage. Some of Rand's allies are inside the dome; Perrin and Loial are two such. The rest of his allies (e.g. several Wise Ones, Rhuarc) are outside of the dome, still fighting. The shield cannot be raised to admit his allies without letting the Shaido in.