This report provides background information and potential issues for Congress on the Navy's irregular warfare (IW) and counterterrorism (CT) operations. News reports about the May 1, 2011, U.S. military operation in Pakistan that killed Osama Bin Laden state that the operation was carried out by a team of 20 to 25 Navy special operations forces, known as SEALs, specifically an elite unit known as Seal Team 6.

This report discusses issues and questions related to the killing of Osama bin Laden (OBL), which are multifaceted and may have operational, regional, and policy implications. Operational policy issues include congressional notification, legal considerations, and current and future military activities.

This report summarizes important recent developments in Pakistan and in Pakistan-U.S. relations. These include high-profile political assassinations earlier in 2011, the Raymond Davis affair involving a CIA operative accused of murder in the city of Lahore, and the May killing of Osama bin Laden in the military cantonment city of Abbottabad, among others. Obama Administration engagement with Pakistan has been seriously disrupted by recent events. A brief analysis of the current state of Pakistan-U.S. relations illuminates the main areas of contention and uncertainty. Vital U.S. interests related to links between Pakistan and indigenous American terrorism, Islamist militancy in Pakistan and Islamabad's policies toward the Afghan insurgency, Pakistan's relations with historic rival India, nuclear weapons proliferation and security, and the troubled status of Pakistan's domestic setting are reviewed. Ongoing human rights concerns are briefly summarized, and the report closes with discussion of U.S. foreign assistance to Pakistan.

This report discusses Pakistan's nuclear proliferation and security issues. It discusses the steps that could enable Pakistan to undertake both quantitative and qualitative improvements to its nuclear arsenal. Whether and to what extent Pakistan's current expansion of its nuclear weapons-related facilities is a response to the 2008 U.S.-India nuclear cooperation agreement is unclear.

This report summarizes important recent developments in Pakistan and in Pakistan-U.S. relations. These include high-profile political assassinations in early 2011; the Raymond Davis affair involving a CIA operative accused of murder in the city of Lahore; and the May killing of Osama bin Laden in the city of Abbottabad, among others. The report also summarizes key issues in the bilateral relationship.

In a security alliance since 2004 and "strategic partners" since 2006, the United States and Pakistan for decades experienced major shifts in the nature and tone of their relations. In the post- 9/11 period, assisting in the creation of a more stable, democratic, and prosperous Pakistan actively combating religious militancy has been among the most important U.S. foreign policy efforts. Pakistan is among the leading recipients of U.S. aid in the post-9/11 period, having been appropriated about $24 billion in assistance and military reimbursements since 2001. FY2013 legislation in the 112th Congress would cut U.S. assistance funding significantly from both the levels requested by the Administration and from those Congress approved for FY2012. Provisions also would introduce more rigorous restrictions and certification requirements on such aid. With anti-American sentiments and xenophobic conspiracy theories rife among ordinary Pakistanis, persistent economic travails and a precarious political setting combine to present serious challenges to U.S. decision makers.

This report discusses key U.S. interests regarding Pakistan, especially as related to counterterrorism and U.S. foreign assistance.

This report discusses the U.S. arms sales and grants to Pakistan since 2001 that have included numerous items useful for counterterrorism and counterinsurgency operations.