With tensions flaring between President Donald Trump and national security adviser Lt. Gen. H.R. McMaster, the Pentagon is considering options that would allow the President to potentially move the three-star general out of his current role and back into the military, according to half a dozen defense and administration officials.

A search is quietly being conducted by the Pentagon to see if there is a four-star military job suited for McMaster, these officials said.

Several sources told CNN that the push for a replacement comes after months of personal tension between McMaster and Trump. The task of easing McMaster out of his role as national security adviser presents a unique challenge for the White House.