Chairman, Joint Chiefs of Staff Committee, General Khalid Shameem Wynne on Friday cancelled a scheduled visit to the United States. It is widely believed that the visit has been cancelled in protest against US raid in Abbottabad that shattered the trust between Washington and Islamabad. An army official said Khalid Wynne informed his counterpart in the US, Admiral Mike Mullen about the cancellation of his visit, which was scheduled from May 22 to 27, the official said.