President Obama set to announce shake-up in leadership of CIA, FBI and Afghan military operations.
President Obama is expected to announce a shuffling of his top security advisers later today.
NBC news has learned that CIA Director Leon Panetta is expected to become the next Defense Secretary.
He'll be replaced at CIA by General David Petraeus, the man charged with turning around the wars in Iraq and Afghanistan.
Panetta, a former White House Chief of Staff and Congressman, will play a key role in the upcoming budget fights on Capitol Hill.
Panetta is expected to start at the Pentagon on July first, but General Petraeus will continue to lead the fight in Afghanistan until September.
Meanwhile Ryan Crocker, current U.S. Ambassador to Iraq, will now serve as the U.S. Ambassador to Afghanistan.
Crocker takes over for retired General Karl Eikenberry.
Eikenberry served as U.S. Ambassador to Afghanistan for two years.