There are three types of aggression that your corgi could have, dominance, possessive,or territorial. Two of the aggressions ( territorial and possessive ) may cause your corgi to attack to keep their area safe, or to keep the item they have which could lead to death for your corgi. If your corgi attacks, you must train your corgi to behave in, public before it ever goes out to see people or else. But first off, dominance. Dominance can be just try to stay top dog by different ways. Most of the attempts work on people by your corgi doing something cute for you to give in, or even just from playing with your corgi. Your corgi may try and gain dominance by your corgi eating first, your corgi gets on top of you, you move out of the way when your corgi blocks you off, or your corgi wins any game that uses strength. Dominance aggression seems to be one of the hardest to be trained to stop because of instinct. Possessive aggression can be very dangerous to stop. So for one thing, try not to get bitten by getting near what your corgi is guarding. Your corgi’s aggression for possession of something may stop when your corgi gets older, but in other cases, you can always try and get information on how to stop your corgi’s possessive aggression. Possessive aggression may also be to protect you, which tends to stop when your corgi is older, and starts when your corgi is young and wants all the attention. Now for territorial, it might be worse to you if it isn’t your corgi. For territorial, it could be to protect your land or house, which could not effect you as other people get growled at, or warned to back away. You can wait for this to stop when your corgi is older, or try and train your corgi to stop. Aggressions can be commonly found in most corgis, but most can be trained to be stopped.