This class of weapons dates to at least the nineteen eighties, when Israel formulated the Harpy loitering munition for use within the suppression of enemy air defenses (SEAD). China would later on get the Harpy from Israel in 1994 and continues to be learning loitering munitions for over two decades. https://calebxqgx360blog.blogdigy.com/the-best-side-of-drone-inspection-bangladesh-59386065