North Korea sent some missiles. They went into the sea on Sunday. This is before the leader of South Korea visits China. The missiles make people worried.
The missiles flew far. Leader Kim Jong-un watched. He says the tests are good. North Korea wants to be safe.
The tests happen before leaders talk. They want to talk about weapons. The missiles send a message. North Korea does not want to talk.
Kim Jong-un's daughter was there. Some think she will be the next leader. This and the weapons mean a new leader is ready.
South Korea and the USA look at the tests. They are ready. The world is not safe now.