Meanwhile, Israeli Southern Command attempted to pinpoint the main Egyptian effort to launch a counterattack with Dan Shomron's reserve armored brigade, when, in fact, there was no main effort. As a result, Southern Command wasted several critical hours without taking decisive action. Tactical errors also showcased themselves when Reshef moved his tank brigade forward; Israeli commanders neglected to conduct reconnaissance beforehand, causing their units to fall into Egyptian ambushes. In the confusion ensuing the surprise assault, no attempt was made at evacuating the Bar Lev garrison.