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Italian Pan-Nationalists will appear if the "March of the Thousand" decision has not already been fired, and an Italian nation fires the " Italian Call to Union" decision instead. Sardinia usually takes this path in conjunction with the Pact of Plombieres events (see Notes below), as that's the most likely way it will gain the Lombardia region, but it need not. An Italy formed this way works exactly the same as the "Avanti Italia!" decision- with the exception that Rome will remain in the hands of the Papal States (but will automatically secede everything else) and there is a much greater chance that Italian nations will refuse to join the union if they are not in Sardinia's sphere.
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and should they succeed in overthrowing any Italian nation they will send an event to Sardinia which allows it to form Italy. This may not lead to instant rebellion, but it does mean that the redshirts will now form whenever those countries get militancy. This gives them +20 Prestige and +3 Infamy, but also adds 10 militancy and 2 consciousness to every Italian pop in other Italian countries. Redshirts appear only if Sardinia-Piedmont takes the " March of the Thousand" decision, which requires only that they own the Lombardia region. With the rebel route, there are actually two types of rebels that can appear in Italy: It also sends an event to any Italian neighbor that is a greater power (or is Austria) as well as any GP who you have previously pried away a sphereling from which could result in them gaining a CB on the new Italian nation. The effect of the decision will form Italy (and add North Italian or South Italian as an accepted culture) and send the "Italian Winds" event to any existing Italian nations, which will very likely result in them accepting annexation (since they are sphered). The Italian cores in Lombardy and Venice are specifically excluded from this group if their current owner is not part of the Italian culture group (so if Austria owns them, they can be ignored, but if either has been freed then they must be owned/sphered).
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The " Avanti Italia!" decision has the following requirements: The two primary ways are through the "Avanti Italia!" decision (which is actually the more difficult route) and through rebels. Italy isn't all that difficult to form, and there are several options available.
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