How do you go grocery shopping after living on the edge?

Rating: 7/10 (10 April 2016)

I've seen this twice now and it failed to make much of an impression either time. I figured I must have just missed "it" the first time around because the movie received so much acclaim, including critics and the Oscars but no, I came away just as indifferent in my re-watch.
I can't really figure out why I failed to connect but I think it has might have something to do with the way this is told. There isn't really much of a story, its more of a meandering war narrative, with a bunch of random crazy events/missions strung together without much to tie it all in.
The story follows a trio of very different members of the army's elite Explosive Ordnance Disposal squad (EOD) tasked with the nerve wracking job of dismantling improvised explosive devices in Baghdad. (Anthony Mackie, Jeremy Renner & Brian Geraghty) battle insurgents and each other while they search for and disarm a wave of roadside bombs. I like all these actors and they do a great job but again I failed to make much of a connection with them.
I did find the closing scene a little heartbreaking as I had wondered throughout how any of these guys could ever go back to a normal life at home after what they'd seen and been through. How do you go grocery shopping after living on the edge? Who do you talk to about what you've seen? who can relate on any level. I had enough trouble relating to people after I returned from a year backpacking in Europe so yeah. 3/9/16