Which operation began first, Spring 1945 offensive in Italy or Operation Overlord?
Spring 1945 offensive in Italy:  The attack into the Lombardy Plain by the 15th Allied Army Group started on 6 April 1945, ending on 2 May with the formal surrender of German forces in Italy. Operation Overlord:  The operation was launched on 6 June 1944 with the Normandy landings (Operation Neptune, commonly known as D-Day).
i don't know