Don't forget Yemen, where there are also extremist elements, as we saw recently.

After being married for over 37 years, I showed extremely poor judgment by engaging in an extramarital affair.

I will not ever run for political office, I can assure you of that.

There [in Afghanistan] is also a growing insurgency threat from al-Qaida, the Taliban and other extremist elements, some of which comes from the tribal areas of Pakistan, as well as from the Northwest Frontier province and Baluchistan.

I think Putin wants to recreate as much of the Soviet Union as he can through a variety of different means. He's invaded parts of Georgia, took Crimea, southeastern Ukraine, bases in other countries.

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."

We obviously don't want to cause problems for the Afghan government, President Hamid Karzai and the Afghan people. In fact, we want them to support our efforts on their behalf and not see us as unwelcome occupiers.