Nam War

I don't know much about the Vietnam war. I dont really know what exactly i would want to learn. But i know that it would be an interesting topic to learn about because i know around that time there was a lot of controversy around the war in Vietnam. Maybe i would like to know why we were at war with them. The things people went through that were effected by the war? What causes and effects did the war have on the world ? Did the war change anything that we do today ? Hmm, maybe im ready to learn about this :)