<prompt> Qedela lo musho olandelayo: Uhlelo lwe-Lightning Bug lwabonakala luphumelela kakhulu. Uchungechunge lwezinguquko ezisheshayo zedrone ekhona ekhonjiwe lwaphumela esimisweni esisebenza kahle kakhulu kunalokho obekulindelekile, ngisho nangobuchwepheshe bokuqondisa obungeyona into ebalulekile ngokwezindinganiso zekhulu lama-21. Naphezu kwalokhu, i-Lightning Bugs ayikwazanga ukuthonya inkambo yempi. Ukuhlola kwama-drone kwabonisa ngokucacile ukuthi abaseNyakatho Vietnam babephula isivumelwano sabo namaMelika ngezinga elikhulu, kodwa abaholi base-U.S. babengazimisele ukuzibophezela ekuqedeni impi yabo engapheli. Lapho abaseNyakatho Vietnam beqala ukuhlasela kwabo kokugcina ekuqaleni kuka - 1975 i - U.S. yenza okuncane ukubayekisa;  <response>: ISaigon yawa ngo-April 30, 1975 futhi impi yaphela. 