Cluster munitions to contain 2% glitter by weight.
Supposedly the U.S. military is the largest buyer of glitter so that makes sense.
Do you have a source? I searched and found an article but the supplier wouldn't say. Just speculation.

I saw an interesting video on this just recently, actuality:

youtu.be/y08scEk59G0

The End of the Glitter Conspiracy

YouTube
No, that’s why I weasel worded it with “supposedly”. Like, there are some sites that say it’s true but are you gonna trust a place called memesfeel.com?
Glitter conspiracy solved?

Facebook Twitter Pinterest reddit Blogger Tumblr Earlier this year, a theory began to circulate online that a company was deliberately adding glitter to their products to make them harder to use and so customers would have to keep buying more. This so-called “glitter conspiracy” had many people outraged, imagining companies secretly laughing as they watched ... Read more

Memes Feel
It’s for the fabulous gay bombs the CIA are perfecting to deploy against the Russians to sway their culture towards LGBTQ acceptance.