Hi, developers, this is an article about the principle of armor piercing. I think it could help you for the "Tank Crews". Another article about the T-34/76 and T-34-85 protection and 85mm gun firepower is here:         As a main theme, the armor vs gun is an important thing for every tank, so expound the armor piercing principle is important for us. Of course, this is not necessary to read other chapters, you can skip this chapter and go straight to the next chapter.