U.S. officials said two main categories of aid are affected: foreign military financing (FMF), which funds purchases of U.S. 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 U.S. national security priorities.

CSF funds, which fall under Defense Department authority, are covered by the freeze, said Pentagon spokesman Commander Patrick Evans, saying Congress authorized up to $900 million in such money for Pakistan for fiscal year 2017, which ended Sept. 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, U.S. 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. “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.