Japanese Countries that have the Indian Sultanate government by default, but are neither Muslim nor were forcefully converted to another religion, will quickly be forced to choose by event between conversion to the appropriate branch of Islam, or facing a large amount of rebels and a stability hit. For example, if the state religion is Catholic, Catholic provinces will use this tolerance value. The Defender of the Faith loses the title, but no prestige, if they refuse or lose the war. The base value of tolerance of heathens is Ideas and policies that affect Tolerance of heathens: Without an appropriate Supporting religious zealots is only possible if the desired religion is present in the target nation and is the likely rebel type in a province with unrest above 0. However, the following conversions In addition, only Japanese-culture provinces can convert to Shinto as the result of an event. Modifiers that increase strength include: The Defender of the Faith doesn't get a call to arms if the country attacked is a co-belligerent (e.g., if France is the Catholic Defender of the Faith and Venice (Catholic) is allied with Serbia (Orthodox), then if Ottomans (Sunni) attack Serbia and make Venice co-belligerent, France doesn't get a call to arms). Provinces of the state religion always contribute 100% unity regardless of tolerance. This refers to the state religion. Generally the nation will be able to overpower the rebels if left to its own devices, so it is critical to support them militarily. The base value of tolerance of the true faith is This refers to different religions within the same A province is more likely to convert via event to a particular religion if a neighboring province has that religion. A center of reformation is destroyed if its province is converted to another religion. Since patch 1.8, it seems the Defender of the Faith gets a call to arms only for countries on the same continent or sharing their border. If you have the Cradle of Civilization DLC The player can adjust the missionary maintenance cost by a slider on the The following ideas reduce missionary maintenance cost: This generally only is the case if they have been released as a vassal or in a peace deal, which will likely make them Hindu initially, because Indian sultanates rarely convert the local religion, and indeed have no need to due to their large bonus to heathen tolerance. In addition, a few ideas specifically affect missionary strength when converting heretics, but have no effect when converting heathens. Base missionary strength is 2%. Ideas and policies which increase religious unity: Catholic countries that hold the Defender of the Faith title cannot be excommunicated by the Papacy, regardless of relations. These tolerance values are national, but have Additionally, positive tolerance of heretics and heathens allows those provinces to contribute to Note that there are some national ideas which remove all penalties for having negative tolerance. Religious unity is the percentage of a country's development provided by provinces that follow the state religion or a positively tolerated heretic or heathen religion, excluding any assigned to trade companies. This can be done by declaring war against the target nation using the "Support Rebels" A nation that is broken by religious rebels, or that accepts their demands, will convert to the rebels' religion provided that the rebels' religion is the plurality religion in terms of development. If heretic tolerance is +1 and heathen tolerance is -2, the country's religious unity will be (100% * 10 + 50% * 4 + 0% * 16) / (10 + 4 + 16) = 40% Some religions may convert among certain heresies/sects via the Religion panel, at a cost of 100 prestige. Therefore, if your ally is Defender of the Faith and you have a common enemy of the "defended" religion, this ally will not be able to join you in an offensive war against this enemy, as AI wouldn't break a truce. The primary method for a A center of reformation will cease to convert provinces after start of the Muslim nations can enable "Propagate religion" policy in trade nodes inside a There are several different ways a country may change religion. The effects of tolerance on religious unity per province are as follows:
The revolutionary target may also do this to heathens. For most countries, giving in to religious rebels is the only way to change between religious groups.