Anyone know how to correctly use spearmen against cavalry?

[TevashSzat]

Yep, lets put it this way, i have killed about 2 units of jaguar warriors i think on large unit sizes with only 3 fully upgraded mongol horse archers (not sure which one, but the best one) people. Not three units, but three people within a unit by charging the warriors and then have them charge through the other side and keep on running away without giving the jaguar warriors a chance to retaliate

[Bearclaw]

There are a few ways to beat enemy heavy cavalry. Either you can bring along some infantry units that can deal with a cavalry charge, like pikemen (depending on faction), or throw a line of peasants in front of your army to stop the charge. You can also use sharpened stakes if you're England or The Turks. You can also counteract a charge with your own heavy cavalry-they have sufficient mass that they don't get destroyed in a charge. You can also use the environment-trees, the ruins and farmhouses that sometimes appear on the battlemap, etc. can all break or prevent a charge.

In my current English campaign, I'm using the stakes method and keeping about 3-4 heavy cavalry units in my army to guard my flanks. I would say using your own cavalry is the best way to do it, possibly along with using a line of peasants. Using your own cavalry would definitely be the best way (if you lack stakes), but sometimes enemy cavalry charges out of their own army and it's impossible to isolate and destroy them. Pikes are good but I hear they switch to secondary weapon (sword) too easily.