Lokacin da Shugaba Nixon ya kaddamar da hare-haren a shekarar 1970, sojojin Amurka da na Kudancin Vietnam sun yi aiki a karkashin laima na iska wanda aka sanya Operation Freedom Deal. Lokacin da aka janye wadannan sojojin, an ci gaba da aikin iska, a fili don hana PAVN / Viet Cong ƙungiyoyin ƙungiyoyi da kayan aiki. A zahiri (kuma ba a sani ba ga Majalisar Dattijan Amurka da jama'ar Amurka), an yi amfani da su don ba da tallafin iska ga FANK. Kamar yadda wani tsohon jami'in soja na Amurka a Phnom Penh ya ruwaito, "yankin da ke kusa da Kogin Mekong sun cika da bama-bamai daga B-52 harbe-harbe, duk da cewa a shekarar 1973, sun yi kama da kwarin wata.
firaminista da ministan tsaro