Obviously the assassination of Al-Qaeda's top leader, Osama bin Laden, largely affected US military policies in Afghanistan. It was far likely for President Barack Obama to scale down US military presence in such a level as he announced on June 22. i.e. 33,000, previously surged, US troops would leave Afghanistan by next September, if Al-Qaeda leader was alive. Thus, his murder, recognized as giant strategic success for Obama's administration, has accelerated an anti-war attitude among common people as well as officials alike.
But, seemingly, the consequence is not limited to above issues only. His dead has dealt far larger effect on entire war strategy in Afghanistan. There are approved allegations that US is directly involved in diplomatic measure with Top Taliban leaders. And, frequently, Taliban leaders also have voiced out that Kabul government is not the principle part in ongoing peace process negotiation, but it was US that they were negotiating with. Assuming the allegations true, the question would be raised that why, though top US commanders disagree with the plan and many analysts believe that ongoing situation necessitates stronger as well as longer presence, President Obama decided to pull out military in such a large extent, as many maintain?
Several factors can be assumed, like economic and financial problem at home, declining popularity of war in Afghanistan, coming Presidential elections and etc. but there is another factor which is ignored somehow, and that is linked to Osama's murder. His death has sparked a new notion among top US officials and the war strategy is going to be redefined. The notion is that operations as that held for his assassination should be stressed much rather than costly military involvement for cracking down lower layers of militants.
During past years, the US military operations were concentrated much on elimination of military strength of militants, but it was not successful as much as expected. Taliban leaders still continue to show rigidness and inflexibility to compromise with Kabul government. The new notion or strategy concentrates much on militants' leaders, which far less frugal as well as, perhaps, be effective in forcing them to come to negotiating table. It is assumed that if top leaders of Taliban are threatened to death, it will help the ongoing peace process more effectively instead of waging costly war against common Taliban fighters. But whether the strategy proves effective, as many maintain, is quite early to judge.