From an axe to a killer drone

I think today’s weapons of war are increasingly geared towards felling an enemy in as humane a way as possible, with high velocity firearms ensuring a quick death. Soldiers are also trained to kill enemies quickly and painlessly, with bladed side-arms. However, in times gone by, humane weapons were the last thing warriors were looking to wield. Pain and maximum suffering were the order of the day, and the popularity of a weapon could be measured by its brutality. For good reason, too! Let’s take a look at some fearsome weapons that scared the crap out of the enemy, from the useful axe, which originated in 1,000,000 B.C., to today's killer drones.