"On February 5, 2013, the Secretary of Defense and the Secretary of Veterans Affairs announced that instead of building a single integrated electronic health record (iEHR), both DOD and VA will concentrate on integrating VA and DOD health data by focusing on interoperability and using existing technological solutions. This announcement was a departure from the previous commitments that both Departments had made to design and build a new single iEHR, rather than upgrading their current electronic health records and trying to develop interoperability solutions."

http://www.fas.org/sgp/crs/misc/R42970.pdf