<P> Using more than 15,000 slave - labourers , the Germans created more than 2,000 well - fortified machine gun nests , casemates , bunkers , observation posts and artillery - fighting positions to repel any attempt to breach the Gothic Line . Initially this line was breached during Operation Olive ( also sometimes known as the Battle of Rimini ) , but Kesselring 's forces were consistently able to retire in good order . This continued to be the case up to March 1945 , with the Gothic Line being breached but with no decisive breakthrough ; this would not take place until April 1945 during the final Allied offensive of the Italian Campaign . </P>
<P> Using more than 15,000 slave - labourers , the Germans created more than 2,000 well - fortified machine gun nests , casemates , bunkers , observation posts and artillery - fighting positions to repel any attempt to breach the Gothic Line . Initially this line was breached during Operation Olive ( also sometimes known as the Battle of Rimini ) , but Kesselring 's forces were consistently able to retire in good order . This continued to be the case up to March 1945 , with the Gothic Line being breached but with no decisive breakthrough ; this would not take place until April 1945 during the final Allied offensive of the Italian Campaign . </P>
when did the allies break through the gothic line
when did the allies break through the gothic line
April 1945
April 1945