The document summarizes a live web seminar hosted by the Program on Humanitarian Policy and Conflict Research at Harvard University on June 15, 2011 to discuss the legal implications of the U.S. military operation that killed Osama bin Laden in Abbottabad, Pakistan. The seminar featured a panel of experts who analyzed the applicable legal frameworks and norms, and whether new regulations are needed to govern future counterterrorism operations. Key issues addressed included the justification for using military force on another state's territory and what constitutes direct participation in hostilities.