Western diplomats say that infiltration has doubled over the past month compared with the same time last year, and is a particular problem from Bajaur.

西方外交官说与去年这个同一时期相比，上个月的军事渗透增加了一倍，军事渗透是Bajaur特有的问题。

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As evidence, Pakistanis cite two recent strikes against alleged terrorists in Bajaur, a tribal area in the northwest.

NPR: Trip to Religious School Offers Window on Pakistan

Since early August, the Pakistani army has been engaged in an intensive campaign against the militants in one of the tribal territories, Bajaur.

NPR: Series Overview: The Embattled Frontier

Bajaur shares a border with the Afghan province of Kunar.

BBC: The Afghan-Pakistan militant nexus