Private US security firm Xe, formerly known as Blackwater, bought by group of private investors.
Washington terms Pakistan central to success in the region.
Analysts say there is a contradiction in Obama's claims, the review does not reflect ground realities.
US president calls on Pakistan to step up the fight to root out terrorist safe havens.
Obama administration reviews overhauled Afghanistan strategy, finds Taliban momentum arrested in many areas.
Sixty per cent Americans believe the war in Afghanistan is not worth fighting.
Afghan Taliban claim the US handling of the war had a "lethal dent" on Holbrooke's health.
Review comes as the US copes with Holbrooke’s death.
US Ambassador Cameron Munter with his wife, Dr Marilyn Wyatt, presided over the ceremony.
US intelligence reports call "Pakistan's unwillingness to shut down militant sanctuaries" as obstacle in Afghan...