in animal farm what was nepoleans reaction to the demoltion of the first windmill

The destruction of the windmill fits right in with Napoleon's plans; it's a tool of manipulation. Snowball is blamed for the ruination of community project, and Napoleon gets exactly what he wanted, control over the other animals. Complete control. Afterwards, Napoleon supports the rebuilding of the windmill, something he wanted all along but now he has initiated the project; it becomes his.