Vice President JD Vance and Chairman of the Joint Chiefs of Staff Gen. Dan Caine both raised concerns about escalating the war in Iran as President Donald Trump weighed the possibility during a White House meeting on Friday, a source familiar with the matter and a US official told CNN.

On Friday night, the US appeared to pause its bombing campaign on Iran after nearly two weeks of consecutive nights of strikes. Operations are “on a hold,” a Department of Defense source told CNN on Saturday.

On Friday, Caine specifically raised concerns about the US munitions stockpile and other potential negative implications, according to the sources. One of the sources said that Caine told Trump and the US military they could carry out the options available to him and be successful but then warned of the possible implications.

The stockpile concern was one of many raised to Trump during the meeting, both sources said.

It’s currently unclear if the stockpile concern or warning about escalation were the primary reasons why the US paused consecutive nights of strikes or whether it will continue to do so.