WASHINGTON, April 28, 2009 – Army Lt. Gen. Karl Eikenberry retired here today, 24 hours before being sworn in as the U.S. Ambassador to Afghanistan. Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, dons a U.S. Army ball cap at the conclusion of the retirement ceremony for Army Lt. Gen. Karl Eikenberry, Pentagon, Hall of Heroes, April 28, 2009. Eikenberry retires after 35 years of service and will be sworn in as the new U.S. ambassador to Afghanistan in a ceremony tomorrow by Secretary of State Hillary Clinton. DoD photo by U.S. Navy Petty Officer 1st...