 Former United States Ambassador to the United Nations Zalmay Khalilzad demanded a "complete isolation policy" for Pakistan.He said that if Pakistan does not stop backing radicalism and extremism, the United States should suspend all aid to it and treat it as a second North Korea.On 5 January 2018, US suspended about $2 billion in security aid to Pakistan for failing to clamp down on the Afghan Taliban and the Haqqani Network terror groups and dismantle their safe havens, a White House official said.