MOST "military lasers" are something equivalent to an Alpha 15. Green lasers are commonly used downrange to scare off Iraqis because they thing we use green laser sights, so when they shine it at a car or something at night, they get scared and drive off. If they don't, we light them up. This continues to work after five years.
Those ultra expensive super good mRad green lasers you see labeled as "military" are useless to use. We use IR.
Back when I was a forward air controller nothing we used was visible light it was all infrared lasers. It has to do with Murphy's Laws of Combat. "Tracers work both ways" and as such "visible lasers work both ways". Even when IR lasers are available you don't use them unless you have to and it's well coordinated between a ground lasing team and the air support as to when to lase to minimize the time the laser system is operating. We used passive IR systems until the pilot called for lase on. The best days were when the aircraft or the wingman could lase the target so we wouldn't have to. We just watched the fireworks.
Even in close quarter combat you don't see visible lasers. When the laser systems are employed it's generally when the CQB team is wearing nods and can see the beam and dot in the dark.