The Defense Department announced plans last week to reinstate a ban on service by openly transgender Americans that, until now, has been blocked by multiple court rulings. This decision hurts our national security, deprives our ranks of much-needed talent and flies in the face of the values our military institution represents.

I should know. As chairman of the Joint Chiefs of Staff from 2007 to 2011, I advocated — and led our armed forces through — the repeal of “don’t ask, don’t tell,” a policy that similarly forbade gay and lesbian troops from serving openly. Read the entire article here