The piercing siren surprised everyone.0

Richie’s expression also showed his surprise, but it was obviously not the time to hesitate. Even if he didn’t think anyone could pose a threat to the Heart of Steel, he still performed his duty, shouting loudly to his men. "Air raid! Find cover! Fast!"0

The soldiers and construction personnel in the camp quickly ran and lay down behind cover.0

The dense barrage of 100mm secondary cannons came from overhead and Richie recognized their simultaneous fire.0

Crawling behind an unfinished blast shelter, he took out binoculars and looked towards the distant sky. Through a gap in the treetops, he could vaguely see what was going on.0

Beneath the clear sky, a line of orange flames was arranged in a row. The thick smoke from the explosions formed an impenetrable wall.0

Yet, still, five planes smoking black, broke through the first round of barrage with their skilled maneuvers.0

Whatever it was, their fates were sealed. It also seemed like they realized the same point as they stopped twisting meaninglessly and charged straight at the airship. They emptied all the weapons they had before the second round of anti-aircraft barrage arrived.0

Their planes were inevitably blown to pieces, but their dozen or so rockets flew at the air ship.0

Richie felt a strange...0