Happens a lot faster in an airplane. Doing a day low level on one of the routes in Korea on the Ole Talon we wound up beak to beak with a Pave Low. I just happened to see it first coming up the ridge line we were cresting, started yelling pull up, pull up, and the pilot did. A windshield full of helicopter was a jolt to the ticker. We didn't miss each other by much. We had some beers with that crew later and they said they saw us and pushed down. Can't remember the deconfliction screw up on how we wound up on the same route like that.