The Aegis ballistic missile defense (BMD) program, which is carried out by the Missile Defense Agency (MDA) and the Navy, gives Navy Aegis cruisers and destroyers a capability for conducting BMD operations. Under MDA and Navy plans, the number of BMD-capable Navy Aegis ships is scheduled to grow from 33 at the end of FY2014 to 43 at the end of FY2019. The figure of 43 ships for FY2019, however, includes four BMD-capable Aegis cruisers that are proposed under the Navy's FY2015 budget for some form of reduced operating status starting in FY2015.