The London System:A Venomous h3 Move.

And , Mr.pfren , could you please put some lines after Ne4?I appreciate your analisis but not other's.

@IM pfren you know your stuff. 13. ... Ne7 is a nice move. There is no kingside attack for white anymore. f4 shows a common bad habit amongst London System players. They lack understanding when to play it. Typical thought process of a LS-Player: Ne5, f4, g4, Qf3, mate. A few simple moves and this attack will peter out.

The games from Levon Aronian are a good source for how to play against the London System.

The setup with ...Bd6 and ...Nc6-e7 is quite common for Black in another opening with similar ideas for white, namely the Colle- Zukertort. A general rule for white is that he'd rather NOT hurry putting a knight at e5, since it fails to create problems to Black.

https://www.chess.com/blog/FangBo/why-the-london-system-is-an-easy-opening-to-play

After 14...Ne4 black solves his problems and draws the position with more attacking chances for black. All in all this is playable but with Bh2 I would always aim to keep the diagonal open instead of putting it behind its own wall.