Mr Coats told a hearing of the Senate Intelligence Committee that despite Washington's requests to do more, the Pakistan military is only trying to appear tougher against the Taliban and Haqqani terrorists.
"Pakistan-based militant groups continue to take advantage of their safe haven to conduct attacks in India, in Afghanistan, and including US interests therein," Mr Coats said.
"Ongoing Pakistani military operations against the Taliban and associated groups probably reflect the desire to appear more proactive and responsive to our requests for more actions against these groups."
Mr Coats said that the US Treasury Department had announced terror designations in recent weeks on eight members of the Taliban, the Haqqani Group and other groups, aiming to boost pressure on the terrorists' abilities to operate.
However US intelligence agents believe that Pakistan "will maintain ties to these militants while restricting counter-terrorism cooperation with the United States," he said.