A phalanx
Spear and sword.
Spear
a pilum
Sarissa.
The phalanx was invented by the ancient Greeks, but is seen most when Alexander The Great was in power. Alexander improved the phalanx by adding the pike (an 18 foot spear) to it increasing its effectiveness in battle.
He mostly used a spear.
Spear and sword.
A two-tipped spear is called a double-headed spear or a double-bladed spear. It is designed with a blade at both ends for increased versatility and effectiveness in combat.
It is called the Spear
An Aztec spear thrower is called an atlatl. It is a tool used to increase the velocity and distance of a thrown spear by providing leverage for the thrower.
King Arthur's spear was called "Rhongomyniad." It was a powerful and legendary weapon that he used in battle.
a harpoon
Spear
tail
In the ancient Roman legions, one of the main weapons of their soldiers was the javelin. This we could call a spear as per the question. There were several innovations made to the javelin that made it a very effective weapon. One example of this was a javelin that after it struck a target, the head of the javelin would bend making it impossible for the enemy to throw the javelin back to the Roman soldiers.
if you mean the zulu spear; an 'Asagi', though I'm not 100% on the spelling
Lance