He never said it explicitly. But the WW3 threat was a strong insinuation of what 'could' happen. It won't though, like most other Project Fear claims... they could happen, but they probably won't.
So, he hedged his bet. You either believe it will happen or you don't. He is a coward.
No one mentioned WW3. That was hyperbole by journalists reporting what was said by various former generals and leading NATO figures.
