The Pentagon announced they are lifting the ban on women serving in ground combat positions. To help you out, this does not mean they are going to be infantry. That is still iffy. This means that women can perform their jobs assigned to a battalion which primarily conducts combat missions. This means that I, as a Signal officer, can now be assigned to an infantry or armor unit. This doesn't mean I am infantry or armor. It means I can do the job I am trained for in a unit that is currently all-male.
This will definitely make the Army stronger as a whole. Everyone who says that it will break down unit cohesion must not respect women. Will men act differently around women? I hope so. But it won't drop their combat effectiveness. Completely competent women should not be excluded from a challenging assignment simply because she is not a man.