https://www.warhistoryonline.com/world-war-i/operation-michael-the-germans-regain-the-offensive-m.html
Operation Michael: The Germans Regain the Offensive | War History Online
Jul 19, 2017 - By the spring of 1918, the Western Front of the First World War had been almost static for three years. Then the Germans, intent on breaking the deadlock
operation michaelthe germansoffensive warregainhistory