Several methods can be used to protect against the possible effects of lasers directed against friendly soldiers. One way is to use nondirect-view optical devices such as thermal imagers or NVDs. The laser energy deposited on the screens of the imaging devices can burn out the devices themselves, but the eyes behind them are protected. Other protective measures are like those used against any LOS weapon. Cover and concealment should be used to avoid detection and possible lasing.
Smoke can degrade the effectiveness of many types of lasers.
When firing from a defensive position, soldiers should use alternate and supplementary positions to reduce the chance of being detected, suppressed, or destroyed by aimed fire. Commanders should realize that the BLPS filter does reduce contrast and available light for users. Laser range finders are the ones most likely to be used near friendly soldiers. US Air Force and US Navy aircraft may also carry laser target designators, used for aiming precision-guided munitions. To avoid injury to other friendly soldiers, operators of laser-firing devices must positively identify their targets before lasing.