Last month, President Donald Trump gave Defense Secretary James Mattis complete authority to set troop levels in Afghanistan.

But apparently that’s not the case.

Shortly after Trump gave Mattis full authority to set troop levels, National Security Adviser Lt. Gen. H.R. McMaster sent a memo around the White House saying that the Pentagon chief had to check with them in order to deploy more than 3,900 troops, the Wall Street Journal reported.

The Associated Press reported in June that the Pentagon would be sending nearly 4,000 more US troops to Afghanistan to train local forces fighting the Taliban and ISIS, but the Defense Department quickly denied the report.