This is social experimentation at its worst. While I agree that a very few women (atypical to be sure) possess the strength and emotional toughness to serve in Infantry units, we should not wholesale allow women to serve in those units. Make no mistake, war is fluid and "front lines" do not exist in non-linear conflicts, but there is a distinct difference in the mission of various units. A logistics unit's job is to repair of deliver stuff. Signal units establish and maintain communications and so on. Here is the difference, Combat support and Combat service support units defend themselves using combat skills when necessary. Combat units hunt down and kill, often eye-to-eye, our nation's enemies. We should not make women into killers.