About spears.
In the decline of the Roman Empire infantry started to equip the soldiers with short (2m)spears known in 5th century as lance (the soldiers were called Lancarii).
Maurice's reform added a longer spear (3m) to his line infantrymen (scutati/contarati) to give them a better chance to stand against cavalry charges.
A longer spear means:
Cavalry also uses same legth lances/spears ..
Infantry needs a morale boosting factor to stay in position.
In western europe the most common spears that used from 6th to 10th centuries were about 2.5m long for both cavalry and infantry.
Exeption was the lances of Lombard "cataphracts"!
It is true that scildron was not used until 13th century and IT WAS an scotish tactic made by the need to withstand against the fearsome english knights.
In the rest of western europe infantry (spearmen or not) was very weak against cavalry charges exept when some tribes (anglosaxons.franks) used massive infantry blocks with shieldwall!
In the east were the light and range cavalry was side by side with the heavy charging one against infantry other solutions had to be made!
1st :
Trivoloi :those(iron made) 4 parts nails were spread out around camps or infront of infantry formations that were NOT ment to moove farwards. Their task was to hurt horses feet!
2nd : Syntaxis formation. That formation looked similar to shield wall. With shields close to one to other and with the spears apearing 2m ahead this formation gave the infantry the needed morale to stand ground!
3rd : Menaulion or kontarion makron.
There is a long dispute for the accurate presentation of those weapons that for some historians are one and the same weapon.
Never the less spear was the tool to kill the horseman but infantry had to place cavalry in to a position to be exterminated.
a) Kontarion makron.
Nikephorus Phokas saw that even the 3m spears were not enough to persuade his half trained/militia infantry to stand against cavalry charges!
So 1st time after many centuries a 4,5m long spear apeared for the 1st ranks of the infantry formations.
That "forest" of long spears worked as a huge fear against the horses survival instict.
b)Menaulion.
Here we have a totaly diferend solution. A short thick spear that was ment to penetrate armors inside infantry formations gaps that there was no room for cavalry to maneuvre.
Some historians insist that Menaulati places wooden sticks in front of infantry formations before battle begins.
3rd) Ranged or lancer counter cavalry units.
This was the ultimate counter weapon against enemy cavalry!
But no matter the spear solutions what remained to infantry men was their training and their courage against the cavalry charges.
If a soldier had the courage to stand at his ground then no matter how long was his spear this weapon was enough to kill any kind of cavalryman!