Soldiers assigned to an engineering and chemical defense element of a combined arms brigade under the 81st Group Army keep vigilance around an armored vehicle during the tactical training in late March, 2021.Photo:China Military

A soldier assigned to an engineering and chemical defense element of a combined arms brigade under the 81st Group Army fires a flame thrower at the mock target during the tactical training in late March, 2021.Photo:China Military

An engineering vehicle attached to an engineering and chemical defense element of a combined arms brigade under the 81st Group Army sets up a rapidly emplaced bridge system for tanks over a trench during the tactical training in late March, 2021.Photo:China Military