Just seen an amazing documentary about two Huey helicopters, one unarmed,

[Joe Chi Minh]

rescuing 100 or so of your troops (with South Vietnamese lads, as well), who were under fire, surrounded by 5 to 600 Viet Cong. The problem was, though, that there was nowhere for them to land, and they had to crop the tops high bamboo canes with their rotors. A very hazardous business. The tail rotor was damaged by the first chopper, the unarmed one, but they managed to limp off a few miles away, though they had to take off like an ordinary plane.

The second one, armed, then went along as well to pick up more, and they kept going back. Somehow, none of the crew were hit. Anyway, one of them, now getting on a bit, as of course, they all were, said how, ever since, he kept thinking about the one Vietnamese guy left behind.

They met up again recently in Vietnam, and he was moved and thrilled to bits to hear that the other one had gone back and picked up the lone Vietnamese, he'd last seen still holding his ground.

Astonishing story. More than a touch miraculous.