Breaking Tweets found twitterers in the U.S. had mainly negative things to say about the idea.
NYMACGirl (Las Vegas, Nevada): New Surge of troops in Afghanistan? I hope not. http://tinyurl.com/c2gdmp
ranggrol (Florida): 400,000 troops??? While I agree that we (America) broke it (Afghanistan), I passionately oppose Obama's plan to buy it. (LBJ anyone??)
tiffyness (Oceanside, CA): @iamdiddy i wouldn't demand anything bt my hope is tht he pulls our troops out of Afghanistan asap. how many more kids have to die for Bush?