When the car runs out of fuel just in front of the gas station, you can push it towards it. But what to do if the same thing happens to an aircraft in flight? Plus a jet fighter, the most modern creation of its time ... the same. Push.
The best pilot Risner had ever met in his life was not an American, but a MiG-15 pilot with whom he had fought. To a duel that ultimately brought losses on both sides.