A lesson in history...
Korean War (1950), Project 596 (1964), North China Military Exercise (1981), and the modern (2019).
Music: "Chinese Army Spirit" (中国军魂) and "Always Ready" (时刻准备着)
Timestamps:
0:00 - Korean War/朝鲜战争
1:30 - Project 596/邱小姐
3:06 - North China Military Exercise/华北大演习
4:53 - Modern/现代