Major religious wars, such as Crusades or Jihads, are massive 'boss' events that can reshape the map. If you are the target, immediately call all your allies and mercenaries. Focus on defending key holy sites or strategic chokepoints. If you are participating, contribute troops to gain 'War Score' and potentially claim significant rewards. These wars are often long and brutal, requiring careful management of levies, gold, and alliances. Prepare for them by building up your treasury and military strength.
