The issue of President Trump getting the military bureaucracy to bend the knee to added civilian oversight in the shadowy halls of Special Operations Command (SOCOM) the teeth of US military might..worldwide.
An article on the issue: https://www.yahoo.com/news/trump-loyalist-pushed-out-of-white-house-now-leading-a-shakeup-at-the-pentagon-155750076.html

Christopher Miller: https://www.defense.gov/Our-Story/Biographies/Biography/Article/2111192/christopher-c-miller/
ALSO: https://www.sandboxx.us/blog/the-special-forces-roots-of-acting-secdef-christopher-miller/

General Mark Milley: https://en.wikipedia.org/wiki/Mark_Milley
General HR McMaster: https://en.wikipedia.org/wiki/H._R._McMaster
General Richard Clarke: https://en.wikipedia.org/wiki/Richard_D._Clarke
Earlier Video discussing SOCOM and it's sub unit, AFRICOM https://www.youtube.com/watch?v=00n5S3QB-0g&;t=308s
The ACTUAL Document that is to be implemented https://www.congress.gov/114/plaws/publ328/PLAW-114publ328.pdf