The Empire's apeless reconnaissance aircraft would be destroyed by the Federation's long-range firepower not long after taking off.
The images they managed to send back before crashing, along with the images transmitted by Mechas, prevented the Empire from becoming blind in the war against the Federation.
Therefore, under normal circumstances, breaking through the Empire's Mech Force usually signified an impending local battle victory for the Federation.
The main forces of the Empire's fifth base zone were left with few apeless reconnaissance aircraft; they could only march towards the location of the fifth base based on the intelligence obtained by Aida Kang from the Tower Top Organization.
Because the coordinates provided by Aida Kang were about two kilometers off, their marching direction was slightly deviating.