Well congrats they got that story, they repelled in order: the mongols, the greek, the chinese, the russians, the british, the russians, the americans and soon the chinese. Are they the swiss yet ? Some ingredient is missing , the story aint it.
Up until the Soviet era, a lot of the natural resources Afghanistan has simply were not relevant, or maybe that fits it better, there were easier ways to acquire them than a country thousands of road (!) miles away from the powers that were.
The Soviets wanted Afghanistan for imperialist reasons, during the first Taliban era there were enough other sources that were more convenient, the Americans lacked the conviction and coherence to follow through... and now the Chinese are swooping in with money.