Just as there have been war horses and war elephants, it is believed that pigs were used briefly on the battlefield, although in a far less awe-inspiring manner. Around 275 BC the Romans used squealing pigs to repel the war elephants of the enemy.
In one of the more bizarre episodes of World War 2, the Soviets trained dogs to go under German tanks with explosives strapped to their bodies. More than 40’000 dogs were used by the Soviet military and the plan was to use all of them to seriously impede the German advance.
It was common practice in Europe from around the 14th to the 18th century to accuse, try, and execute animals for breaking the rules of human society. Animals accused were even provided defense lawyers to defend their actions.