Following appeals from the United States and Afghanistan, Pakistan Prime Minister Yousuf Raza Gilani on Wednesday said the country cannot attend the crucial Bonn meet on the future of Afghanistan if Islamabad did not receive assurances from the world community about its security and sovereignty.
A meeting of the federal cabinet chaired on Tuesday by Gilani decided that Pakistan would boycott the Bonn Conference on Afghanistan scheduled on December 5 to protest a NATO air strike on military border posts that killed 24 soldiers over the weekend.
Pakistan has also asked the US to vacate Shamsi airbase, reportedly used by CIA-operated drones.
"If we have no assurance about Pakistan's security, sovereignty, integrity, honour, dignity and self-respect, then we cannot go (to the Bonn Conference)", Gilani told reporters on the sidelines of an event in the southern port city of Karachi.
In response to a question, Gilani said the Joints Chiefs of Staff Committee's office had sent a letter to the US asking for Shamsi airbase to be vacated by December 11.
Pakistan had leased Shamsi airbase to the United Arab Emirates in 1992. Reports have said the UAE allowed the US to use the base for drone flights after the 9/11 terror attacks.
Gilani said he had told Afghan President Hamid Karzai, "If we are making efforts for your security and if we have to go to Bonn for you, who will guarantee our security?"
Karzai had telephoned Gilani on Tuesday and asked him to reconsider the decision to boycott the Bonn Conference, for which key players like the US have been preparing for several months.
The White House has asked Pakistan to attend the crucial international meet on Afghanistan in Bonn early next month. Gilani said his "friend and brother" Karzai had told him that the Bonn Conference was being held for Afghanistan.
He quoted Karzai as saying, "If it is being held for Afghanistan, then Pakistan's absence will not be well taken".
But he said he had told Karzai that Pakistan was protesting "since Afghanistan's soil has been used against Pakistan". He added, "A country that is our twin brother, its soil is used against Pakistan. So we did not want to go (to the Bonn Conference) under protest. He (Karzai) said we did not do this, it was done by NATO and America".
Gilani said he had asked Karzai to speak to the US about Pakistan's participation in the Bonn Conference.
"We have to defend our country. We have to work for the country's security and defence," he said. He said Pakistan wants stability in Afghanistan and would be part of any Afghan-led initiative for political reconciliation.
Saturday's NATO attack have added to tensions between Pakistan and the US, whose ties have been under severe strain since the May 2 American military raid that killed Osama bin Laden in the garrison town of Abbottabad.
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