WASHINGTON - Acknowledging a trust deficit between Pakistan and the United States, a State Department spokesman said Friday that the Obama administration would work with Congress on a five-year $ 7.5 billion aid package for Islamabad. Look, theres no question that there is a trust - issues of trust. But thats why were working hard to try to resolve them. And theres a commitment on both sides to try to deal with that question, spokesman Robert Wood said. He added that the US would continue to work with Pakistan. Im not going to say that the issue of trust is going to be resolved overnight. Its not. But it takes action on the part of both governments to try to deal fairly and squarely with a lot of these issues that confront us, he told the regular news briefing. Pakistani leaders have welcomed stepped up U.S. assistance but President Barack Obamas insistence that the money wont come without conditions has irritated the government and underscored a trust deficit between the two camps. The spokesman said U.S. would continue to work in order to address the issue of trust deficit. But as I said, the stakes are very high. And we need to work with Pakistan on trying to prevent the Taliban from wreaking more havoc, on not only Pakistan but Afghanistan in particular. Earlier, the spokesman said in a statement that the US pledged $1 billion to Pakistan at the Tokyo conference as down payment of President Obamas commitment to working with Congress on Kerry-Lugar measure that would authorise $ 1.5 billion economic assistance annually for Islamabad over five years. Our goals, obviously, are to do what we can to support the government of Pakistan and its efforts to try to bring about economic development and further democracy in the country. He said the U.S. wants that the taxpayers money being spent on the welfare of Pakistani people.