In the early '60s you could always tell a SF base. It had an airstrip for resupply. Easy to spot from the air but as helicopters became more numerous the airstrips were slowly overgrown and disappeared.
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In the early '60s you could always tell a SF base. It had an airstrip for resupply. Easy to spot from the air but as helicopters became more numerous the airstrips were slowly overgrown and disappeared.