Potential major reductions to ground and tactical aviation forces that the Pentagon maintains could be used to implement huge budget cuts spanning a decade are backed by recent classified guidance that breaks with the tradition of treating the Army, Air Force and Navy departments as fiscal equals, according to defense officials. The Defense Department's Strategic Choices and Management Review (SCMR), which eyed the potential impact of budget cuts totaling $500 billion over a decade, "concluded we should not take reductions...