This course of weapons dates to no less than the eighties, when Israel developed the Harpy loitering munition to be used from the suppression of enemy air defenses (SEAD). China would later purchase the Harpy from Israel in 1994 and has long been studying loitering munitions for over 20 years. https://catchymelodies11100.59bloggers.com/38812314/the-basic-principles-of-drone-survey-for-environmental-monitoring-bd