@xplayer. I do not really understand why you give Nd2 an exclamation as I already showed black is equal in the position after Nd2.
White is playing the London System. He is giving black equality in all variations/lines. In exchange for a universal set up that can be played against any black line and a very solid position.
Which is the compensation white goes for when they play a London System.
The reason I put an exclamation point on 5.Nd2 was becuase that was a key move in that position. It must be played by white in that exact position or white will find himself in trouble. If white instead played 5.Nf3 than blacks response 5...Qb6 gives black the advantage.
5.Nd2 in that position is the key move that saves whites bacon. It is of the highest importance. It deserves 2 exclamation points.
Moonnie, I think he is doing it because it is a necessary move in the setup.
You are correct SIR. It is the only move in that position.
London opening is for my granny, Ruy is for the priests of bitter losing and Schotch for tired people.