Conflicts between Afghan President Hamid Karzai and US-NATO occupation forces over the legal terms of their presence in the country are intensifying.

More... (http://www.wsws.org/en/articles/2013/12/04/afgh-d04.html)

On Sunday, Karzai issued a statement claiming that US-NATO forces were withholding fuel and other material support from their Afghan counterparts in an effort to force him to sign the security agreement.

Obama playing imperial hardball. Caracalla got nothing on this dude...