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The US State Department announced the decision, saying it reflected the Trump administration's frustration that Pakistan has not done more against the two groups, which have long used sanctuaries in Pakistan to launch attacks in neighbouring Afghanistan that have killed US, Afghan and other forces. The department declined to say exactly how much aid would be suspended, saying the numbers were still being calculated and included funding from both the State and Defence departments. US officials said two main categories of aid are affected: foreign military financing (FMF), which funds purchases of US military hardware, training and services, and coalition support funds (CSF), which reimburse Pakistan for counter-terrorism operations. They said they could make exceptions to fund critical US national security priorities.

We're hoping that Pakistan will see this as an incentive, not a punishment US officials

CSF funds, which fall under Defence Department authority, are covered by the freeze, said Pentagon spokesman Commander Patrick Evans, saying Congress authorised up to $900million in such money for Pakistan for fiscal year 2017, which ended September 30. None of that money has yet been disbursed. The freeze also covers $255 million in FMF for fiscal year 2016, which falls under State Department authority and whose suspension has already been announced, as well as unspecified amounts of FMF that went unspent in earlier fiscal years. Briefing reporters, US officials stressed the suspension did not affect civilian aid to Pakistan and that the money could go through if Islamabad took decisive action against the groups.

GETTY/REUTERS People took part to an anti-US rally in Pakistan to protest against the freeze

“Our hope is that they will see this as a further indication of this administration's immense frustration with the trajectory of our relationship and that they need to be serious about taking the steps we have asked in order to put it on more solid footing,” a senior State Department official told reporters. “We're hoping that Pakistan will see this as an incentive, not a punishment,” he added. The Trump administration briefed Congress on its decision on Wednesday. Pakistan has long rejected accusations that it fails to tackle the militants battling the Kabul government and foreign forces from sanctuaries on the Pakistani side of the border. It is largely shrugging off the proposed US aid cuts but frets that Washington could take more drastic measures to deter what it sees as Pakistan's support for the Taliban.

REUTERS People chanted slogans in an anti-US rally in Chaman, Pakistan

Tense ties between the uneasy allies nosedived on January 1 when US President Donald Trump lashed out on Twitter against Islamabad's “lies and deceit” despite $33billion in aid and the White House warned of “specific actions” to pressure Pakistan. Trump's frustrations are shared by some US politicians, who accused Pakistan of playing a double game by allowing militant groups sanctuary - which Islamabad denies - despite promising to crack down on them. “Pakistan is one of the most duplicitous governments I've had any involvement with,” Senator Bob Corker, Republican chairman of the Senate Foreign Relations Committee, told reporters. “Their, in essence, support of the Haqqani network, or ... allowing them to have safe harbor in their country when they're the greatest threat to our men and women in uniform.”

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