"Today we can confirm that we are suspending security assistance to Pakistan at this time", Nauert said.
Nauert made clear the $255 million was still blocked, and the Pentagon said the new action targets payments of so-called Coalition Support Funds that the US pays to Pakistan to reimburse it for its counterterrorism operations.
It added that funds were being disbursed "without always following the DoD policies and procedures to validate whether actual logistical and military support was provided and without adequate documentation to support its analysis of the reasonableness of Pakistan reimbursement claims" and that "officials stated that they were not allowed to observe or validate military operations within Pakistan".
"There is a United States dollars 10 million reward out for information leading to his re-arrest, the person who is the mastermind of the Mumbai attacks who was let go in Pakistan", Nauert said. The impact isn't clear because few details have been released on how the Pakistani military has been using the funds. The U.S. has given Pakistan billions in aid over the years since 2002, but most of that funding has gone to military efforts to advance U.S. security interests. This led the United States to become critical of Pakistan's role in fighting terror, particularly on the matter of safe havens to terrorists. "They have to help", Trump said last month unveiling his National Strategic Strategy last month.
Nauert told reporters that the suspension will remain in effect until Pakistan "takes decisive action" against groups, such as the Taliban, that are "destabilizing the region and targeting USA personnel".
However, Heather Nauert maintained that the suspension was imposed on temporary basis as the United States wants Pakistan to fulfill its obligations and initiate a decisive action against all terrorist groups including Haqqani Network. Civilian assistance is not affected.
On Thursday, the US State Department also tweeted that it has placed deeply conservative Muslim Pakistan on a special watch list for severe violations of religious freedom. The step does not carry any serious consequences.
The Trump administration's strategy for ending the war in Afghanistan and defeating terror groups in the region faces its first major test in its confrontation with Pakistan.
Pakistan, which serves as a key transport route for supplies to US forces in Afghanistan, denies harboring terrorists.
Ayaz Sadiq said the most important point of the meeting was that all parliamentary parties had shown national spirit by voicing unity over national security and nobody did politics over the issue.
"The United States relies upon the Pakistan military to patrol Pakistan's western border and to help achieve the USA goal of denying safe haven to the terrorists and extremists", said a 2009 report by the Department of Defense's inspector general.
"It's north of $255 million", said one US official. "No more". Foreign Minister Khawaja Asif, in response to Donald Trump's tweet said that Pakistan was not anxious as it had already refused to "do more" for the US. Earlier Thursday, Mattis said the policy on military aid to Pakistan was "still being formulated".
Activists of the Difa-e-Pakistan Council shout anti-U.S. slogans at a protest in Karachi, Pakistan, on January 2, 2018.
It also levels the same charge at Kabul, accusing Afghanistan of harbouring militants on its side of the border who then launch attacks on Pakistan. He said Pakistan could fall back on Saudi Arabia and China for military supplies, but it still depends on the USA for certain types of high-end equipment.
South Asia expert Christine Fair of Georgetown University voiced concern that Pakistan might retaliate for the suspension by closing the highways from the port city of Karachi on which equipment is trucked to the Afghan National Security Forces (ANSF) and the airspace through which supplies are flown to US -led global forces in landlocked Afghanistan.
"No matter what, the relationship is in a bad spot right now".