Tue, 10/17/2023 - 06:54 Tech Insider Ukraine's 55th Separate Artillery Brigade fires a Caesar self-propelled howitzer toward Russian troops near the town of Avdiivka, Ukraine, May 31, 2023.REUTERS/Viacheslav Ratynskyi Tags Military & Defense, News, Ukraine, Russia, ukraine-war, news-uk Source Russia has likely launched its fiercest attack since the start of the year in U…