What is the issue between Ukraine and Russia?

War is not the good solution for human problems. It will lost lot of money & human life for the world, not only them, properties & some financial damage  be happen to the both countries , It will be effect whole world, by the every side. & finally WAR is the not a good solution for the human problems.

 Russia is the a powerful & wealthy country by the every side. If can better understand that matter Ukraine well. Ukraine can discuses their problems & make a peaceful situation to the Europe.