Tuhia he tomokanga mō tēnei wāhanga - I ngā tau 1960 me ngā tau 1970, i ārahi a Vang Pao i tētahi ope huna o te iwi Hmong, i tautokona e te US Central Intelligence Agency, ki ngā ope kōmihana i te Pakanga Whenua o Laos
, "Secret War" rānei, i ōrite ki te pakanga a U.S. i Vietnam.