Chinese-made 107mm Katyushas have a range of about 8km, while 82mm mortars can exceed 5km. Much of the Green Zone is more than 8km from firing positions beyond the new wall.
“It’s a tried and true strategy that we’ll continue to prosecute here because it has worked well in other locations, and we think it’ll work well here,” said Brigadier General Will Grimsley, an assistant division commander.
Colonel John Hort, who commands US troops on the southern edge of Sadr City, said the heavy sandstorm sharply limits sensors and targeting lasers on helicopters and unmanned drones used to identify firing positions.



