The conference also focused on the fight against international terrorism. According to U.S. Secretary of State Hillary Clinton Afghanistan and Pakistan should be seen as "a single strategic concern". The border area with Pakistan was seen as the "nerve center" of the extremists who plotted the September 11 attacks, the Madrid train bombings, the &lt;a href="7%20July%202005%20London%20bombings"&gt;7/7 bombings&lt;/a&gt;, the murder of the Benazir Bhutto and the Mumbai attacks. As a consequence of this insight the phrase "Af-Pak strategy" was used for the "theatre" on both sides of the Afghan-Pakistan border.