Overall financially the U.S. offered two packages of economic assistance and military sales to support Pakistan's role in the war against the Soviet troops in Afghanistan. By the wars end more than $20 billion in U.S. funds were funnelled through Pakistan. to train and equip the Afghan mujahideen militants. Controversially $600 million went to Hekmatyar's Hezb-i-Islami party which had the dubious distinction of never winning a significant battle during the war. They also killed significant numbers of mujahideen from other parties, and eventually took a virulently anti-Western line. "Cyclone" nevertheless was one of the CIA's longest and most expensive covert operations. The full significance of the U.S. sending aid to the mujahideen prior to the intervention is debated among scholars. Some assert that it directly, and even deliberately, provoked the Soviets to send in troops. According to Steve Coll's dissenting analysis, however: "Contemporary memos—particularly those written in the first days after the Soviet invasion—make clear that while Brzezinski was determined to confront the Soviets in Afghanistan through covert action, he was also very worried the Soviets would prevail. ... Given this evidence and the enormous political and security costs that the invasion imposed on the Carter administration, any claim that Brzezinski lured the Soviets into Afghanistan warrants deep skepticism."