 Shortly thereafter, forces under Rosecrans and General Edward Ord attempted to capture Price's army, which awaited, at Iuka, the arrival of massive reinforcements from General Earl Van Dorn's Army of West Tennessee.On September 19, during the Battle of Iuka, a fresh north wind caused an acoustic shadow that prevented Ord from hearing the battle.Consequently, he was unaware of it, and his troops stood idle while fighting raged a few miles away.