Obama nominates Gen. Martin Dempsey as chairman of Army . Adm. Michael Mullen is nominated as vice chairman of the Joint Chiefs of Staff . Gen. Ray Odierno is nominated to replace Dempsey as the the Joint Chiefs of Staff 's chief of staff . Adm. Michael Mullen 's term as head of the joint chiefs ends in every week .
Obama nominates Gen. Martin Dempsey as chairman of the Joint Chiefs of Staff . Adm. James Winnefeld is nominated as vice chairman of the Joint Chiefs . Gen. Ray Odierno is nominated to replace Dempsey as the Army 's chief of staff . Adm. Michael Mullen 's term as head of the joint chiefs ends in September .