Suppose why the ram was invented by the Assyrians? List the reasons for the military successes of the Assyrians.

Because they were masters of warfare, they used all military innovations and used them for war. So the Assyrians were the first to massively use siege weapons (catapults, battering rams, towers, ballistae, etc.). They even created engineering troops, which were engaged in servicing siege engines, and also took an active part in the storming of cities. The reason for the military successes of the Assyrians is a strong and well-armed army.