The multiple integrated laser engagement system, or MILES, is used by the U.S. military and other armed forces around the world for training purposes. It uses lasers and blank cartridges to simulate a
MILES simulation (note the laser emitters attached to the rifles' barrels, and the laser receptors on the soldiers' helmets and harnesses)
Polish Soldier with MILES gear, AKMS and three magazines taped together jungle style
Police SWAT team preparing for training with the Simulaser Man-Worn system
Simulaser's HGSS/GVLLD simulator
An opposing force is a military unit tasked with representing an enemy, usually for training purposes in war game scenarios. The related concept of aggressor squadron is used by some air forces.
U.S. OPFOR soldiers playing the role of Iraqi insurgents in Fort Polk, Louisiana.
A UH-1H replicating a Mi-24 at Fort Irwin in 1985
Dutch soldiers of 11 Pantserinfanteriebataljon Garderegiment Grenadiers wearing mohawk-style additions on their helmets to denote opposing force status.
New Zealand Defence Force soldier denoting opposing force status by wearing Desert Disruptive Pattern Material (DPM) in a temperate environment.