WASHINGTON (Reuters) - The Pentagon said on Monday it was reviewing “adjustments” in arms for U.S.-backed Kurdish forces in Syria but stopped short of declaring a halt to weapons transfers, suggesting such decisions would be based on battlefield requirements.

Turkey said on Friday that U.S. President Donald Trump told President Tayyip Erdogan he had issued instructions that weapons should not be provided to Syrian Kurdish fighters, which Ankara views as threat. It called on Monday for Washington to follow through on its pledge.

“We are reviewing pending adjustments to the military support provided to our Kurdish partners in as much as the military requirements of our defeat-ISIS and stabilization efforts will allow to prevent ISIS from returning,” said Pentagon spokesman Eric Pahon, using an acronym for Islamic State, which U.S. and U.S.-backed forces are battling in Syria.