NEW YORK - Former US counterterrorism ambassador Michael Sheehan has been offered the top Pentagon job overseeing Washingtons secret operations. Two senior US officials say Sheehan will help coordinate Americas campaign of clandestine operations and drone strikes from Pakistan to Afghanistan to Yemen. The White House has not announced the selection yet. If Sheehan accepts, he will become assistant secretary of defence for special operations - one of the most important civilian jobs in Americas covert war. The post is currently held by CIA veteran Michael Vickers, who has been nominated for the Pentagons top intelligence job. Sheehan, who has had several overseas assignments in Panama, El Salvador, South Korea, Somalia and Haiti, is seen as the best candidate for the controversial post. Veteran US diplomat Richard Holbrooke had recommended Sheehan as the person I would most want at my side when trying to stop terrorists, before his death last month. Shortly after the September 11, 2001 attacks, former US President George W. Bush issued a classified order authorizing the Central Intelligence Agency (CIA) to kill or capture so-called al-Qaeda terrorists around the globe. The measure soon grew into the largest CIA covert action program since the height of the Cold War. Since then, the CIA has exercised its authority frequently, carrying out covert military operations in countries such as Yemen, Somalia and Pakistan. These clandestine tactics have been strongly condemned both at the United States and abroad. However, despite the local and international outcry President Barack Obamas administration has expanded Washingtons covert war across the globe. Covert operations may include sabotage, assassinations and support for coup dtat. Obama aide secretly visits Afghanistan: The White House announced that a top national security official took an undisclosed visit to Afghanistan last week, seven months before President Obamas planned start of a withdrawal process for US troops. Deputy National Security adviser Denis McDonough followed up on the recently completed review of the war plan for Afghanistan and Pakistan, the White House said in a statement. McDonough also thanked our troops and civilians for a year of consequential progress in advancing our countrys interests in Afghanistan. When Obama announced the deployment of 30,000 more U.S. troops to Afghanistan in December of 2009, he also said he would start a withdrawal process in July of 2011.