Seeking science, what does the triangle affixed to the helmet of the People's Liberation Army mean in the Vietnamese counterattack?

/KOOC-0/986/KOOC-0/June/KOOC-0/4, No.47 Army of Lanzhou Military Region/No.4 Division of KOOC-0/39/No.5 Company of KOOC-0/6 Regiment and its subordinate detachment captured 968 highland in only/KOOC-0/7 minutes, and annihilated the Vietnamese army/KOOC-0/7. This is the first time that the 47th Army has attacked and pulled out some combat operations since the round of fighting, and the combat code is "Lan Jian -B". Lan Jian's "blue" is homophonic with the initials of the Lanzhou Military Region where the 47th Army is located, and the "sword" means the sword is drawn out of its sheath, and if you dare to fight, you will win.

"Lan Jian -B" withdrew from the swearing-in meeting of combat operations

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In this battle, the 47th Army used microwave transmission technology to control and command battlefield television, which was the first live broadcast of our army. The live video of the battle still seems to fill the author with blood and tears. Some netizens were moved and asked why the officers and men who participated in the battle wore such conspicuous signs on their heads and arms. Is it too easy to be the target of the enemy?

War hero Gu Jinhai. There are obvious marks on his helmet and left arm.

Photo:1986101October14th, a war photographer (with a camera) and commandos were on the battlefield, with signs on their heads (still photographed).

It is normal for netizens to have this question. The red triangle on the commando helmet seems to be for the convenience of those who have never been to the battlefield but have played shooting games. Why do you want to set such a sign? The officers and men of the "Special Fifth Company", the main company involved in the "Lan Jian -B" operation, said: "This is just a means to identify the enemy and ourselves on the battlefield."

"Lan Jian -B" Commando Identity Mark Indication

The above signs are designed to distinguish commanders, combatants and health workers, and facilitate battlefield command, coordination and division of labor. According to the experience introduced by neighboring units in the last round of war, it is difficult for officers and men to clearly hear the shouts of their teammates in a noisy and complicated battlefield environment. Setting identification marks on players has been fully considered.

People who have seen the battlefield video of "Lan Jian -B" action will notice that guns are heard all the time on the battlefield. In addition to shouting at the top of their lungs, the signs worn by officers and men also help to maintain the offensive formation. Veterans of the war recalled that at the beginning of the battle, radio communication was interrupted, and the command only relied on shouting and gestures. Whose gesture is this? Naturally, it depends on the monitor, platoon leader and assault captain.

Most importantly, this is a destructive attack. Our army rushed to the top of the mountain to meet the enemy during the movement, not prostrate. It is impossible for the enemy to aim at some shots comfortably, as long as the logo is beneficial to his own operational command and action. Judging from the operational situation, the casualties of the Fifth Company mainly lie in Vietnamese artillery shells, not bullets. Generally speaking, the advantages outweigh the disadvantages. Of course, from the technical point of view of preventing enemy light weapons from aiming, it can indeed be set more concealed as netizens said.