At Trump's first news conference as president-elect, he had little to say about the military, except once again to complain about the high cost of the F-35 jet fighter program. The questions asked of him dealt mainly with Russia, hacking, potential conflicts of interest, and Obamacare. These are important issues, but how Trump will handle the Pentagon and his responsibilities as commander-in-chief are arguably of even greater import.
Ironically, the last president who had some measure of control over the military-industrial complex was the retired general who coined the term: Dwight D. Eisenhower. Another president – Jimmy Carter – attempted to exercise some control, e.g. he canceled the B-1 bomber, a pet project of the U.S. Air Force, only to see it revived under Ronald Reagan.
Excepting Carter, US presidents since Ike have issued blank checks to the military, the Pentagon, and its bewildering array of contractors. Whether Democrats (JFK, LBJ, Clinton, Obama) or Republicans (Nixon, Ford, Reagan, the Bushes), rubber-stamping Pentagon priorities has been a common course of presidential action, aided by a willing Congress that supports military spending to "prime the economic pump" and create jobs.