In a country with millions of people & cars going everywhere, the enemy is going to get a car bomb out there once in a while.

Our strategy right now is to accelerate the campaign against ISIS. It is a threat to all civilized nations.

North Korea is a direct threat to the United States. They have been very clear in their rhetoric we don't have to wait until they have an intercont- intercontinental ballistic missile with a nuclear weapon on it to say that now it's manifested completely.

Fight with a happy heart and strong spirit.

For the mission's sake, our country's sake, and the sake of the men who carried the Division's colors in the past battles - who fought for life and never lost their nerve - carry out your mission and keep your honor clean. Demonstrate to the world there is "No Better Friend, No Worse Enemy" than a U.S. Marine.

What would you do differently as defense secretary to compensate for this record in which the greatest military in the world, as we are constantly told, doesn't get the job done?

Nothing keeps me awake at night. I keep other people awake at night.