Robin Burton is a young man who grow with everything anyone can hope for, immense talent for cultivation, sharp mind, a wealthy family that will stop at nothing to protect and nurture him. He had everything except the willingness to take them. "Why would I take the same route as my ancestors ? why should I become stronger? to beat this and compete with that..?! THAT IS NOT WHAT I WAS BORN FOR!!" Robin didn't want to compete with young masters, so he made an army and started invading planets.
"...We haven't received any communication from General Elizabeth's army yet, we fear we've lost them."
"...!!!" When he heard the news, Robin opened his eyes wide and stared at Leonid's face as if he were seeing a human for the first time, but he quickly looked down again, maintaining the same expression of shock with a touch of panic.
It had been a while since the planet invasion armies left, they had to dismantle and set up the space portals as soon as they arrived and secure the perimeter of the space portals, and once they secured that limited piece of land and activated the portal and then delivered a quick report to the headquarters, they could deploy to take over the planet, how difficult was that?
Dismantling the portal and not setting it up yet can only mean that they couldn't do it, meaning that something stronger than them prevented them, meaning that a disaster had occurred.