President Obama has criticised previous US strategy in Afghanistan and said that he will make the changes needed to allow him to finish the job. It is now expected that after a series of meetings with key staff over the last three months, he will outline his new policy in a prime time Television announcement early next week. He said, the aim is to ensure that al-Queda cannot operate in Afghanistan or the region. Mr. Obama said yesterday at the White House, he will explain his decision to the American people after this week's Thanks-Giving holiday in the United States. Mr. Obama held his final meeting on a new Afghanistan war strategy with members of his security team on Monday. For weeks, the President has been studying possible war scenarios, including a proposal for substantial increase in US troops strength.