NY Times: WASHINGTON — A nearly two-month lull in American drone strikes in Pakistan has helped embolden Al Qaeda and several Pakistani militant factions to regroup, increase attacks against Pakistani security forces and threaten intensified strikes against allied forces in Afghanistan, American and Pakistani officials say.

The insurgents are increasingly taking advantage of tensions raised by an American airstrike in November that killed two dozen Pakistani soldiers in two border outposts, plunging relations between the countries to new depths. The Central Intelligence Agency, hoping to avoid making matters worse while Pakistan completes a wide-ranging review of its security relationship with the United States, has not conducted a drone strike since mid-November.

Diplomats and intelligence analysts say the pause in C.I.A. missile strikes — the longest in Pakistan in more than three years — is offering for now greater freedom of movement to an insurgency that had been splintered by in-fighting and battered by American drone attacks in recent months. Several feuding factions said last week that they were patching up their differences, at least temporarily, to improve their image after a series of kidnappings and, by some accounts, to focus on fighting Americans in Afghanistan.

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