Clairify my confusion on horses

[Blindpilot]

Ok, i have a question to put out to you all.  I have read the description of war horses and it increases the speed of calvery by 3%.  Now my question is, if calvery cannot attack walls, and the speed my army reaches the battle is based on the slowest unit (my seige) is there any point in increasing war horses beyond the level required to create the next higher level of troops?   

[bilko1]

Jup, but if you choose to do a lot of pillaging, horses do come inhandy. 

[Blindpilot]

Thats what i expected.  thanks.

[soy_julian]

well, one time i made the proof, and the horses resist more if you have the investigation high (sorry my bad english)

[bilko1]

Offcourse they do, especially if you are attacked with a lot of archers. But, if you are not going to pillage, that's about it!