Iran, as we have already discussed, has carried out very, very harmful activities inside Iraq. Funding, trainings, arming and, in some cases, even directing the activities of the special groups associated with the Jaish al-Mahdi and the Sadr Militia.

I just don't know whether it was all destroyed years ago - I mean, there's no question that there were chemical weapons years ago - whether they were destroyed right before the war, (or) whether they're still hidden.

ISIS is on its way to defeat but terrorism threat persists.

Money can be a very important form of "ammunition," although we should never forget that when you're being shot at the most important ammunition is real ammunition.

Pakistan are very keen to carry out the operations themselves. And there's significant effort on the part of the US and other countries to provide assistance that can enable Pakistan to do just that.

I did a week-long assessment in 2005 at (then Defense Secretary Donald) Rumsfeld's request. Following our return, I told him that Afghanistan was going to be the longest campaign of what we then termed "the long war."

There is no military solution to the challenges of Syria.