It was built with Zhao Hai's full support. The planet's outer defense system wasn't easy to build. Not only did he have to set up defense systems at the eight hygiene points, but he also had to set up a defense system at the asteroid belt. The entire defense system consisted of twenty-four bastions, and none of them were easy to build.
Fortunately, Zhao Hai had plenty of resources in his interspace. He also had countless undead creatures. With the undead creatures as the main force of construction and Louis as the commander, they were able to set up the entire defense system of the Jaray 2 within a few years.
