Which event took place first, Operation Undertone or the Battle of Leyte?
Operation Undertone Operation Undertone was a large assault by the U.S. Seventh and French 1st Armies of the U.S. Sixth Army Group as part of the Allied invasion of Germany in March 1945 during World War II.
Battle of Sidi Bou Zid The Battle of Sidi Bou Zid ("Unternehmen Frühlingswind" /Operation Spring Breeze) took place during the Tunisia Campaign from 14–17 February 1943, in World War II. The battle was fought around Sidi Bou Zid, where a large number of American units were mauled by German and Italian forces. It resulted in the Axis recapturing the strategically important town of Sbeitla in central Tunisia. The success at Sidi Bou Zid was reversed by April by counter-attacks by British and American forces. The battle was planned by the Germans to be a two-part offensive-defensive operation against US positions in western Tunisia.