Charles Moskos of Northwestern University has floated this idea of all-female battalions, complete with a female colonel in charge. Among its other virtues, this would give women a chance to prove unequivocally that they can do the job. Critics of the idea will undoubtedly raise the issue of racial segregation of the military during World War II. If subsequent racial integration was a good thing, as we all agree it was, why is sexual segregation tolerable? Moskos--co-author, with John Sibley Butler, of All That We Can Be, a book about the successful racial integration of the Army--makes the oft-overlooked point that racial integration and sexual integration pose two entirely different kinds of problems. Human nature complicates the latter much more than the former. (This judgment draws corroboration from evolutionary psychology.) Also, the consequences of racial segregation are quite different from the consequences of sexual segregation. A literal war between the sexes that would shatter our society will never happen. Large-scale racial conflicts, in contrast, do happen, and they usually happen in a context of residential and/or vocational segregation.