[DeaconBenjamin]

“We don’t have a choice, given the tremendous pressure on Pakistan,” the ISI man said, almost apologetically. “So you are ordered to stop immediately all cross-border operations.”

As in -- we don't have a choice but to give you these orders. As the article makes clear (albeit Newsweek), the militants have a choice whether to submit. Meaning, the ISI does not control them, Indian media notwithstanding.

[mikeIII]

Ok, if there weren't the "tremendous pressure", they, the ISI, would have had the choice NOT to give the orders. And encourage, perhaps?