http://www.washingtonpost.com/graphics/world/vietnam/

http://www.theatlantic.com/international/archive/2015/04/the-vietnam-war-as-seen-by-the-north-vietnamese/390627/

http://www.theguardian.com/news/2015/apr/21/40-years-on-from-fall-of-saigon-witnessing-end-of-vietnam-war?CMP=fb_gu