WASHINGTON The United States hopes to mend its relations with Pakistan badly damaged by the American militarys tough new stance in the region during their high-level talks beginning Thursday at which it plans to unveil a security assistance package totalling $2 billion over five years. Senior US officials and diplomatic sources told CNN that final touches were being given to the package complete with more reliable military aid that will address Pakistans insistence that it does not have the capability to go after terrorists. The aid will help Pakistan purchase helicopters, weapons systems and equipment to intercept communications, the television network said on the eve of the Strategic Dialogue between the two countries to be co-chaired by Foreign Minister Shah Mahmood Qureshi and US Secretary of State Hillary Clinton. The new security assistance will complement the five-year $7.5 billion package of non-military aid approved by the US Congress last year. The US Administration will also discuss how to channel money to help Pakistan rebuild after its ruinous flood, according to The New York Times. But the American gestures come at a time of fraying patience on the part of the Obama Administration, and they will carry a familiar warning, a senior American official said: if Pakistan does not intensify its efforts to crack down on militants hiding out in the tribal areas of North Waziristan, or if another terrorist plot against the United States were to emanate from Pakistani soil, the administration would find it hard to persuade Congress or the American public to keep supporting the country, The Times said in a dispatch. Pakistan has taken aggressive action within its own borders. But clearly, this is an ongoing threat and more needs to be done, the State Department spokesman, Philip Crowley, said Monday. That will be among the issues talked about. White House and Pentagon officials said that one immediate goal of this meeting was to ease the tensions that led Pakistan to close the border crossing at Torkham, halting NATO supplies into Afghanistan. Officials on both sides said that acrimony from the border flare-up had already receded, soothed by the multiple apologies that American officials made to Pakistan last week. Last week, Adm. Mike Mullen, the Chairman of the Joint Chiefs of Staff, said that General Kayani had assured him that Pakistans army would tackle the North Waziristan haven, but on Pakistans timetable. In an interview, Pakistans ambassador to the United States, Husain Haqqani, said, Our American partners understand that we have 34,000 troops in North Waziristan. Our soldiers have been engaged in flood relief after historys worst floods. It is not a question of lack of will. The new security pact would have three parts: the sale of American military equipment to Pakistan, a programme to allow Pakistani military officers to study at American war colleges and counterinsurgency assistance to Pakistani troops. Currently, the United States spends about $1.5 billion a year to provide this same assistance, but it is provided year by year. The new agreement, if endorsed by Congress, would approve a multiyear plan assuring stability and continuity in the programmes, although Congress would continue to appropriate the financing on a yearly basis. This is designed to make our military and security assistance to Pakistan predictable and to signal to them that they can count on us, said a senior official. Qureshi blamed the United States for the situation, saying Washington signed a civilian nuclear accord with India that discriminated against Pakistan. You have disturbed the nuclear balance, he said in a recent interview in New York, and we have been forced to develop a new strategy.