Around 25 April 1945, nineteen months after its founding, the RSI all but collapsed. In Italy, the day is known as Liberation Day ("festa della liberazione"). On that day, a general partisan uprising, alongside the efforts of Allied forces during their final offensive in Italy, managed to oust the Germans from Italy almost entirely. On 27 April, Italian partisans caught Mussolini, his mistress (Clara Petacci), several RSI ministers, and several other Italian Fascists, while they were attempting to flee. On 28 April, the partisans shot Mussolini and most of the other captives, including Petacci. The RSI Minister of Defense Rodolfo Graziani surrendered what was left of the Italian Social Republic on 1 May, one day after the German forces in Italy capitulated.