Whakaotihia te rerenga e whai ake nei: I te mutunga o te tekau tau o te 1960 i puta mai ai te wā o te hurihanga. Mo Haina, i te whakataunga a te perehitini o Amerika a Johnson ki te whakamutu i te Pakanga o Vietnam i te tau 1968, i hoatu e Haina he whakaaro kaore a US e hiahia ki te whakawhānui atu ki Ahia i te wa i riro ai te USSR hei riri nui ake i te wa e haere ana a
i uru atu ki Czechoslovakia ki te whakakore i te kawanatanga Communist a ka uru pea ki Haina.