John Kerry: “Ultimately, it is the political transition that will determine whether our military gains are sustainable.”

I absolutely stand. On the day that that report came out we made it crystal clear, in a release that we put out, that that never took place.

But, we could with battery. We could with-- there's ways to make that work.

The message is, let's find a way to be able to make sure when we fly, we're not leaving emissions that we cannot capture.

The only way to achieve that goal is by coming together in a multinational basis.