Description Siege tries to convey the struggle of pitting a large invasion force against a heavily fortified defending team. The mod is not based on historical accuracy and will use "generic" armies but it will still try to capture the realism of fighting in theSiege tries to convey the struggle of pitting a large invasion force against a heavily fortified defending team. The mod is not based on historical accuracy and will use "generic" armies but it will still try to capture the realism of fighting in the midd