There's two other guys in the lower right corner in the background...if relative size is any indication (and it is), there's not too much distance between fore- and background. That's not a very deep field; looks to my eye like the f-stop on that exposure was about 0.75...
Plus...the lighting looks pretty oddly discontinuous between foreground and background. Could be as a result of focus...I don't know, all my photography experience is at a considerable distance (like thousands or millions of light years ). And as far as I know, there shouldn't be THAT much difference in contrast across THAT little depth of field.
Plus...it looks like the guy in the foreground is plugging his ears against the noise of the cannons behind him. Except...the two guys in the background, closer to the cannons, aren't. They're actually pretty clearly engaged in a conversation. The guns aren't even firing. And if you blow up the picture, the guy in the foreground isn't plugging his ears, he's holding some bizarre, unidentifiable square blocks against his face.
Plus - and here's the real kicker for me - that's pretty clearly Israeli artillery in the background. Israeli military units take a very dim view of photographers crawling around their neigborhood snapping photos of them. Virtually the only picture a photographer is going to get of Israeli military units in the field is going to be a blurry one. For that reason alone, I'm disinclined to believe an AP photographer got close enough to snap a sharp picture of a soldier closely affiliated with the unit, even though the unit itself is blurry in the background. More likely it's a manufactured photo (not necessarily by AP - hell, the Israelis could have done it themselves), with the guy in the foreground inserted to add visual interest to an otherwise blurry shot.