C1146 The treatment of heroes

Wuu ? ? wuu ? ?

An air-raid siren, similar to a ship's whistle, rang throughout the entire military base. It drew everyone's attention to the sky, but no one on the ground could see anything.

"What happened?" Thompson was inexplicably nervous. He felt that this was just an exercise, but if it was an exercise, he should know, and he did not know anything.

"I don't know