This is book 19 of the "Jack Reacher" series.

This note contains spoilers for the book.

These seem to work well read in random order, which is good, since the library isn't very well stocked.

This one is post-retirement (from the Army); he notices an ad directed at him in an Army newspaper, from someone he owes a favor to, so he goes in and allows himself to be roped in to helping.

The case is in Paris and then London.

He nearly gets killed in Paris, is saved only by a gust (the person standing next to him has his head explode; and it's not coincidence Reacher was on the up-wind end of the line). And he and I both knew that something was wrong because the one, or two, snipers only fired one round, even though the plan was apparently to have the first round shatter the protective glass and the second round kill the French President. It was a long-distance shot, 1400 yards, 3 seconds in flight (I haven't checked the ballistic calculations; this was a Barret firing .50 BMG ammo), and the second shot never arrives when the first one doesn't shatter the glass. (Okay, turns out it's really transparent aluminum; 5 inches of it is tough enough to stop even a .50.) What's needed in that scenario is to get the second shot off as soon after the first as reasonably possible, to deprive the target and his security detail of the time to react to the shattering of the glass. I thought it was the author not thinking of that, but it turns out it was an actual clue.

While it looked like the sniper, somebody who Reacher had put in prison for 15 years and who had just gotten out, had it in for Reacher, that wasn't the only problem. The boss of the guy Reacher owed a favor to was trying to get Reacher killed. Reacher survives, accomplishes the putative mission, tells the guy he knows, and leaves. And the guy offs himself immediately.

There's a giant of a bad guy, criminal hired to help the terrorist attack, who Reacher eventually has to take on hand-to-hand. Reacher rarely deals with somebody who presents a challenge, but this guy is bigger than Reacher and extremely quick. Not as smart though. The fight is a bit reminiscent of Willie Garvin against Simon Delicata in A Taste For Death (#3)

One glitch—they discuss who has current and retired snipers who are confident out near a mile, and limit the available stock in the world pretty sharply. And somehow never mention the Canadians.

And the pretty 28-year-old CIA agent does not climb into his bed, and neither does the older CIA manager. Just for variety. I think Reacher had an entirely chaste book, in fact. He doesn't seem to mind.