While precise data is classified, publicly available information suggests the US has used up many difficult-to-manufacture weapons.

President Donald Trump has denied reports that the US is suffering a munitions shortage and vowed in a social media post to seek “long term jail sentences” for those suspected of leaking information.

“The U.S. has massive amounts of ‘munitions,’ especially of certain types,” Trump posted on Thursday morning. “Additionally, large amounts are being manufactured and shipped to the US as needed.”

Trump and the Pentagon face mounting questions about the state of the military’s arsenal, with the war now in its sixth month and a peace deal remaining elusive.