Originally Posted by
Ryllharu
This they did cover, through the alcoholic guy. Everyone on Earth was lied to. The Martians curbstompped Earth's military with probably just a single Cataphract. It was likely over in an instant. Then the Earth governments covered it up, and the alcoholic was made to look like a cowardly idiot who ran from battle rather than one of the very few survivors.
Not knowing how ridiculously badly they were defeated, the remaining forces deluded themselves into thinking they were being sneaky about rebuilding their military. In all likelihood, the Martians have known the entire time they were rebuilding and training and didn't give a shit.