Environmental
MoD UK deals with this in two ways. First, by including in the price the cost of disposal. Second, by having a general policy of using secondary batteries (rechargeable). One or two units use primaries.......
The US, are (or were) the opposite. Use once, chuck them a way. There must be millions of batteries lying in Iraqi and Afghan ditches. You never hear about the environmental effects. They might be told to bring them back, but humping a few useless house bricks around isn't appealing.
We used to have "Safety Plans". These became Safety and Environmental Plans. Lots of hoops, and the focus was on the latter. Never mind that Li-Ions went off in your face like a Roman Candle; demonstrated during 1990 trials. As long as they could be disposed of properly, who cares about providing CSAR or proper kit.