Also - does anybody know the context?
I don't know anything about the image. Somebody posted it on Bluesky without context. I asked them about it but they ignored me. I assume the photo was taken in the US and that's an actual street scene so that photo isn't from a training exercise. But those are just guesses.
I did a reverse image search but it was useless.
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Edit
Clippy [the Hexbear that is] gave me a larger image. I used Tinyeye and it lead me to this 2015 article: Opinion: How U.S. police came to look like soldiers. Unfortunately there's zero info about the photo and it doesn't even appear on the page. But it did give me an even larger photo.
Zoift...
As for the tank thing itself, possibly a modified M706 Cadillac Commando. Its similar but looks greebled with addons
Thanks. See my edit of the body text.