Tue, 09/19/2023 - 17:35 Tech Insider A Russian Army T-72B3 main battle tank during military exercises in the Astrakhan region of Southern Russia on September 25, 2020.DIMITAR DILKOFF/AFP via Getty Images Tags Military & Defense, Defense, Russia, Ukraine, t-72-tank Source Video of a cheap drone destroying an exposed T-72 hints Russian crews are still…