The Obama administration’s decision this month to sell almost $1 billion in U.S.-made attack helicopters, missiles and other equipment to Pakistan will fuel conflict in South Asia without fulfilling the objective of helping the country fight Islamist extremists. Pakistan’s failure to tackle its jihadist challenge is not the result of a lack of arms but reflects an absence of will. Unless Pakistan changes its worldview, American weapons will end up being used to fight or menace India and perceived domestic enemies instead of being deployed against jihadists.

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