Jon Kyl: “We're behind both countries with regard to the hypersonic issue.”

We have to make decisions now to make sure that we have the capacity to build whatever we're going to need to build.

The first thing we've got to do is have a conventional capability which is so dominant that no party would ever consider a nuclear attack against the United States.

It's enough that it's opportunistic. In other words, we're in a conflict with one, and the other sees that this is an opportunity.

It makes our planning much more difficult.