Making sense of Syria is like solving a Rubik's Cube with greasy hands. First, according to Israeli sources the Iranian drone was copied from an American model that Iran had captured intact in 2011, a supposedly 'stealth' aircraft no less. originally intended as a way to send Iranian drone design up a blind alley for several years. During the short 2006 Israel-Hezbollah war in Lebanon, an astonishing 55 Israeli tanks were disabled by the enemy. Hezbollah had developed anti-tank missiles that didn't use a system Israeli tanks could detect, laser-targeting.
Source: Forbes February 21, 2018 19:30 UTC