With the Iraq war over and troops in Afghanistan on their way home, the U.S. military is getting down to brass tacks: culling generals and admirals from its top-heavy ranks. Pentagon officials said they have eliminated 27 jobs for generals and admirals since March, the first time the Defense Department has imposed such a reduction since the aftermath of the Cold War, when the collapse of the Soviet Union prompted the military to downsize. The cuts are part of a broader plan to shrink the upper ranks by 10 percent over five years, restoring them