Porus

…When Porus realised he had been outmanoeuvred and that Alexander himself was now across the river with a powerful force, he turned to meet this new threat, bringing up his main army and his dreaded elephants onto a stretch of firm ground.…

…Then Porus committed his main army, drawing up his infantry behind a long line of war elephants spaced across his front like living towers, with cavalry and chariots on the wings, a formation specifically designed to shatter any frontal assault and to make Alexander's prized cavalry useless.…

…Realising too late that the main blow was coming from upstream, Porus first sent a force under his own son to contest the landing, but it arrived piecemeal and was beaten back, costing the prince his life.…