For this reason several armies have retired the illumination rounds, while the U.S. Army requires that they be fired from a standing position.
The first illumination rounds came at sunset and lit the valley at intervals throughout the night.
Six 120mm mortar illumination rounds popped in the air above the helicopter.
The LGI can fire anti-personnel, anti-material, blinding, smoke and illumination rounds.
An illumination round was fired to light the valley, and it revealed a train of eight elephants, loaded with heavy cannons.
During the attack I-21 fired 34 shells at Newcastle, including eight illumination rounds, but caused little damage.
Prior to the attack the submarine's gun crew had prepared 34 rounds of ammunition; these comprised 26 conventional rounds and eight illumination rounds.
However, it was handier, and could still lay down indirect high-explosive fire, and provide support with both smoke and illumination rounds.
Three muffled pops ignited more illumination rounds.
Similarly, illumination rounds (flares) which were used to light up the battlefield at night were initially provided by ships, shifting over later to landing force artillery.