In short declarative sentences he tells us:
We face many threats in this dangerous world, but I’m not afraid of them. I’m prepared for them. I know how the military works, what it can do, what it can do better, and what it should not do. I know how the world works. I know the good and the evil in it. I know how to work with leaders who share our dreams of a freer, safer and more prosperous world, and how to stand up to those who don’t. I know how to secure the peace.
Again, this is blunt language which conveys he is not bellicose but solid and sober.