This class of weapons dates to no less than the eighties, when Israel produced the Harpy loitering munition for use in the suppression of enemy air defenses (SEAD). China would later on receive the Harpy from Israel in 1994 and has been researching loitering munitions for more than two decades. https://roy-dawson65554.snack-blog.com/38526266/the-best-side-of-environmental-monitoring-drone-bd