You sure seem to have some serious misconceptions. Okay, where to begin...number4096 said:Is anyone sure that the shield got replaced with the armor over time?The shield just seems better against arrows and allows for a much better control over the opponent in battle.
The romans had some of the best armors ever and even them insisted on using shields
The armor will just wear down the carrier,limit vision due to the visor and be overall less efficient at receiving attacks(People died of sling attacks to the helmet,while shields could receive arrow attacks without problem.).
Also,if an axe can break a shield,can a halberd do the same?(My brother once used a halberd and didn't tought of it as heavy but efficient.)
Who on earth ever gave you the idea that armor replaced shields or shields replaced armour?
A simple shield is easy to make, even for a peasant. All you need is some wood and a few leather straps to make a primitive one. Even when comparing a full-metal kite-shield to a simple cuirass breastplate armour (almost full-plate torso-piece, rest chainmail/cured leather), the shield is significantly cheaper and easier to manufacture and affords some serious protection.
But a shield is useful only if you know an attack is coming. Armor protects you no matter what.
And there is a reason why there has been some serious preferance for both all troughout the history.
An armor and a shield fulfill the same basic need for protection, but they do it in a different manner, at different costs and have different weaknesses.
Second, Roman armor....
It was good for it's time, but hardly the best. A leather armor that is then plated with metal plates (large or small) that are woven together with string is an age-old concept. It's called Scale Mail. The Romans called it Lorica Squamata. Don't know what the ancient Chinese called it.
It should be noted that some of the 'barbarian' hide and leather armours, when made thick enough and properly treated afforded practically the same level of protection.
third: halbergs and shields: Sure, if the shield user was stupid enough to take the large, unwiedly and easily predicted attack against his shield straight on. And if he did that, then he'd deserve to die for stupidity.
Understand this: If you are armed with a pole-arm and I'm armed with a shield and a sword/axe, all your non-thrusting attacks can be negated by a single step inwards and a block any child would know how to do after five minutes of training. Your only hope would be to use the versatility and reach of the pole-arm against me. But if you are using a halberg, you can't do it because it's too heavy to use swiftly enough.
Also understand that the wooden pole is vulnerable to a full-on sword block. I could disarm you by simply executing a full-strenght attack against the pole of your weapon if you are adamant on using heavy-hitting predictable attacks. 'Oh going for my shield are you? With a two-handed slow but powerful swing? Let me just take a step towards you and slash full-strenght at your weapon. Even if I lose my shield, you are now disarmed and at my mercy.'
When thinking of pole-arm attacks, always assume the enemy steps towards you and closes the distance. The critical phase is can you block the counter-attack? Can you keep the distance from closing? Can you recover from your attack? To fully take advantage of the pole-arm reach, you need to wild it like an oversized sword: both hands on one end. But this leaves you vulnerable to a close-in attack. Reduce your reach by holding the pole-arm from closer to the middle: this decreases the strenght and reach behind your attacks, but you can recover almost instantly with a simple change of grip and launch multiple attacks from various directions.
Combat with a staff is about blocking with one end of it and launching an instant counter-attack with the other end. It is about instantly reversing the direction of your staff and switching and moving your grip along it to gain the maximum leverage and reach for each individual attack while preparing to defend at any single moment. It is about harrassing your opponent that closes range so that you can retreat to a longer range where you hold the advantage.
Combat with a spear is a lot like it, but with far more emphasis on thrusting attacks with the pointy end.
Combat with a naginata is about slashing and thrusting from long reach, while using the long wooden pole-arm part for defense and extremely close-ranged attacks.
But in principle, if you are armed with a pole-arm and the fight happens well within a swords reach of you, then you are at a serious disadvantage. And a man with a shield is almost guaranteed the ability to close distance against a pole-arm.