WASHINGTON — The United States and Pakistan are veering toward a deeper clash, with Pakistan’s Parliament demanding a permanent halt to all drone strikes just as the most senior American official since the killing of Osama bin Laden is to arrive with a stern message that the country has only months to show it is committed to rooting out Al Qaeda and associated groups.

The United States has increased drone strikes in Pakistan’s tribal areas in the past 10 days in an effort to exploit the uncertainty and disarray among militant ranks caused by Bin Laden’s death on May 2. The latest airstrikes, on Friday, occurred as Pakistan’s spy chief, Lt. Gen. Ahmed Shuja Pasha, in a rare appearance before the nation’s Parliament, denounced the American raid as a “sting operation.”

Parliament then passed a resolution declaring that the drone strikes were a violation of sovereignty equivalent to the secret attack on Bin Laden’s compound in Abbottabad. The lawmakers warned that Pakistan could cut the supply lines to American forces in Afghanistan if there were more such attacks. The resolution contained no condemnation of a splinter group of the Pakistani Taliban, who killed more than 80 Pakistani paramilitary cadets on Friday.

Pakistan stepped up its condemnations of the United States as Senator John Kerry, Democrat of Massachusetts, the chairman of the Foreign Relations Committee and a longtime emissary to Pakistan in times of crisis, was preparing to land in Islamabad. He was arriving with a list of actions — and some offers from Washington to ease tensions — that he finalized in meetings with Secretary of State Hillary Rodham Clinton, the national security adviser, Thomas E. Donilon, and other top American security officials.