nuclear weapons

Hi everyone! Today I write about the nuclear test in North Korea. Last week North Korea reported that they had decided to perform the test of thier nuclear weapon. I was really shocked by this news. We have learned a lot about nuclear weapons since we were in elementary school. The education was not perfect, but we know that nuclear weapons are cruel. It kills, injures and makes suffer people physically and mentally. It also harms the earth. So, why they want do test? However,then I remember that not only North Korea but also other countries have nuclear weapons. China has, Russia has and the US has...... To be strong, or to have big power, should people show off big violence? Of course I don't want North Korea to perform the nuclear test. Though, the other countries which have nuclear weapons are OK?? Now to stop new test is important, but I think we also must work on decreasing whole nuclear weapons. ooo, looong statements... seeya.