It is said that when an Ursaring hibernates for the winter, they can do so in broad daylight, for no pokemon or trainer will dare disturb them. If they do, the Ursaring typically recieves a nice meal and goes back to sleep. It is notable that this story refers to sleeping Ursaring; awake, they are even scarier.
Ursaring are a pokemon which climb trees, walk on their hind legs, and are intelligent enough to open doors: they decline to do so, however, because it is far easier to just break them down. Paralysis, burns, and poisons work as defenses against many pokemon, but Ursaring simply get stronger when such techniques are used against them, and angrier to boot. Nor do human weapons work easily against their thick hide, which repels most gunfire and is too thick to easily cut with a sword – as for pokemon, their sole weakness is fighting, and few fighting-types wish to face a bear of any type in hand-to-hand combat. Needless to say, there are very few ways to escape once one has made an Ursaring mad.
It is only their fierce, untamed nature which has kept them out off the battlefield in wartime; few pokemon trainers can command them, and far fewer officers. But there was once a great conqueror who relied on a force of armed bears (Ursaring and Beartic alike) and won war after war, as much from the terror they create as from their own power: it is amazing how many soldiers are willing to risk death, provided it does not come by being mauled and eaten. Theoretically, there are many ways to defeat an Ursaring: in practice, most people prefer to hand over any extra food and either play dead or run for their lives.