C84 Killing Skills of Songjing Stone Root

The two Japanese planes circled the flag several times, but it was hard to tell if they were observing the position of the projectile or if they were trying to make out the Chinese flag in its main blue hue. Finally, the Japs' plane began to rise, looking like it was about to dive and bombard.

Zhao Jianxin had already set up five machine gun positions around the flag