How did the official churches of the countries participating in the military conflict react to the beginning

How did the official churches of the countries participating in the military conflict react to the beginning of the First World War?

As one would expect, the churches of the countries of the participants in the military conflict, the beginning of the First World War was reacted negatively. The Church opposed violence and in every possible way called to reason. The Pope was outraged at the hostilities and was an ardent opponent of Catholics engaging in fratricide, since this is nonsense in the Church’s understanding. Churches and priests to the last called for peace, with great hope – but as you know, nothing came of this, because spirituality very rarely intersects with politics.