Will Russia and Ukraine War lead to another war?

 2022 has began and not yet half way to it, Russia has declared war against Ukraine. I am a believer in peace and I try to with my life. The allegation that Vladimir Putin says sounds false and I believe that the people of Ukraine are in trouble. Before this war I had hoped that Putin would not wage war against Ukraine causing the world to be in shock. I know that many countries are doing the best to help out Ukraine but what can stop Russia from this war?

From this war, I am hoping that North Korea will not wage war against South Korea. We have lived peacefully with North Korea not too long. We have had disagreements but also agreements on how to lead the countries separately. My wish is that North Korea and South Korea will soon join together to form one country. But sadly it looks like it is no where near getting together. North Korea is still under the control of Kim Jong Un causing more than enough of his people to cross over to South Korea. Currently there are more than hundred people who have crossed over from the North to the South. These people were scared at first but came out on South Korea's national television and are telling their stories. They have been mistreated from birth and struggled to stay alive.

South Korea has provided protection for these people and gave them a life. The world has been at somewhat of a peace for the last century or so but Russia and North Korea are ruining the peace treaty. Have we not learned from the past what war does to people and the country? Have we not matured enough to come up with such childish reasons to go against someone? A lot of people that I know are in support for the people of Ukraine. I am hoping that their will be a solution to all this.