Is Afghanistan the new Vietname?

Read the following links below & Answer the question using evidence:
http://www.theworld.org/2009/10/07/afghanistan-is-not-vietnam/

http://www.dawn.com/wps/wcm/connect/dawn-content-library/dawn/news/world/14-not-vietnam-not-yet-zj-04

http://www.voanews.com/english/2009-10-08-voa29.cfm

Is Afghanistan Obama’s Vietnam? Please elaborate on your answer.