WASHINGTON (Agencies) - US Secretary of State Hillary Clinton warned against abandoning Pakistan again as she urged Capitol Hill to back the administrations request for assistance for key allies including Islamabad. We are trying to deepen our relationship. There are many challenges confronting us, but we know what happens when we walk away from Pakistan. We did it before, and the results, unfortunately, were quite dire for us, she told lawmakers in a testimony before a House Appropriations Committee. In Pakistan, she said, the United States continues to demonstrate its commitment to an enduring strategic partnership focused on economic, military and police assistance to help root out extremists and support other critical investments. In answer to a legislators question, she said the reaction when Minorities Affairs Minister Shahbaz Bhatti was murdered was much more in keeping with what I would expect and hope for any country that when someone who was a patriot, who stood up for the rights of all Pakistanis, including the minority communities, the minority Christian and the minority Islamic communities, was assassinated, people really did speak out and were quite upset. Hillary warned America against walking away from Pakistan, reminding that the consequences of abandoning the country had always been disastrous. After talking about Afghanistan, she told the committee: Equally important is our assistance to Pakistan. Referring to a 16 per cent cut imposed by House of Representatives on US foreign assistance last month, she told the panel: It will be very difficult for us as we are now planning our civilian efforts in an ongoing way in Iraq, Afghanistan, and Pakistan to absorb a 16 per cent cut that passed the House last month. Meanwhile, Pakistans tribal region is the epicentre of terror for the world, and the countrys internal challenges have become 'regional challenges, US Joint Chiefs of the Staff Chairman Admiral Mike Mullen has said. In a session with students, war veterans and members of the community at Arizona State Universitys Walter Cronkite School of Journalism and Mass Communication, Mullen also said that militant organisations pose potential terror threats. Recent suicide bombings in Pakistan, the killings of former Punjab Governor Salmaan Taseer and Minorities Affairs Minister Shahbaz Bhatti were all 'matters of significant concern for the United States, Mullen said, as saying in response to a question. Our relationship with the Pakistani military, which was cut from 1990 to 2000, has improved dramatically over the last several years, he said. We are trying to fill that huge hole created in the relationship between the two countries.