US  President Barack Obama announces a change in his national security team  during a briefing in the East Room of the White House. Obama nominated  CIA Director Leon Panetta (C) as US Defense Secretary and General David  Petraeus (R) to replace him at the spy agency, in a major reset of the  US national security team. 
WASHINGTON:  President Barack Obama reshuffled his top national security aides on  Thursday, altering the chemistry of a team that will help set strategy  on the war in Afghanistan, turmoil in the Middle East and defense budget  battles in Washington.
Picking tested veterans at a  critical juncture of his presidency, Obama nominated CIA Director Leon  Panetta to become US defense secretary and named Army General David  Petraeus, commander of the Afghan war effort, to head the spy agency.
The  appointments mark the biggest realignment of Obama’s war council to  date and could have broad implications for his administration’s plans to  start withdrawing US forces from Afghanistan in July and to seek deeper  Pentagon spending cuts.
The shake-up also could give impetus to  shaping the US military role in the Libya conflict and to what has been  dubbed the “Obama doctrine,” a still-evolving US policy on how to  respond to unrest sweeping the Arab world.
“Given the pivotal  period that we’re entering, I felt that it was absolutely critical that  we had this team in place so that we can stay focused on our missions,  maintain our momentum and keep our nation secure,” Obama said at the  White House with Panetta and Petraeus at his side.
Obama called  for swift Senate confirmation of his nominees. Praise for the men from  Democratic and Republican lawmakers alike suggested the process would go  smoothly.
The changes were set in motion by the impending  departure of Defense Secretary Robert Gates, a holdover from the Bush  administration who had gained Obama’s trust.
The realignment  raises questions about what kind of influence Secretary of State Hillary  Clinton and Vice President Joe Biden, two of the administration’s most  powerful foreign policy voices, will wield within the national security  apparatus and how well the revamped team will work together.
Obama  is taking a gamble that the personalities will mesh and he will avoid  the bitter internal divisions that marked his lengthy deliberations on  Afghanistan policy in late 2009.
With the US public preoccupied  with domestic concerns like high unemployment and rising gasoline  prices, the last thing Obama needs as he seeks re-election in 2012 is  another bout of bickering among his top aides over foreign policy.
Internal Divisions
In  the 2009 Afghan policy debate, Clinton lined up with Gates against a  group that included Biden and Panetta who were reported to have opposed  Petraeus and his fellow commanders’ push for a troop-heavy strategy  modeled on the one that helped turn the tide against insurgents in Iraq.
But  Petraeus won Obama’s approval for increasing troop levels by 30,000 in  exchange for assurances that a withdrawal could begin this summer to  show Americans the makings of an exit strategy in the unpopular war.
Clinton,  Obama’s former Democratic opponent who joined his cabinet in what was  billed as a “team of rivals” approach, has had a close alliance with  Gates.
One official noted that Clinton also has had deep ties to  Panetta from his time as budget director and chief of staff for her  husband, former President Bill Clinton, and this might boost her  influence on national security matters. “She’s a tremendous fan, and  they have worked closely together,” the official said.
Panetta, a  longtime Democratic Party insider, is expected to oversee steady  declines in Pentagon spending in order to divert weapons dollars to the  Treasury Department to help reduce the U.S. deficit.
Petraeus is considered one of the top US commanders, mixing political savvy with military know-how.
He  was originally distrusted by the White House until he lowered his  public profile, and his acceptance of the CIA post puts an end to  Washington speculation that he be drafted by the Republicans as a 2012  vice presidential candidate.
But shifting Petraeus out of  Afghanistan raises questions about the future of the nearly decade-old  war there. Some analysts fear his departure could derail momentum and  undermine efforts to improve US ties with Pakistan.
Seeking to  show continuity, Obama also nominated trouble-shooting diplomat Ryan  Crocker, who has served as ambassador to Iraq, Pakistan, Syria, Kuwait  and Lebanon, as the US ambassador to Afghanistan. Lieutenant General  John Allen, deputy commander of US Central Command, was named to succeed  Petraeus as head of the Afghan war effort.





