the building is still empty despite the presence of idle settlers, a pickaxe will need to be manufactured in the toolsmith. The game also uses a notification system that alerts the player if a building cannot be occupied either due to a lack of the right tool or the absence of available settlers. As in The Settlers III, the game features magic, whereby each race can call upon their deities for economic and/or military assistance. Once the player has both manna and priests, they have finite access to a number of spells, the nature of which depends on the race. These spells include tuning fish to stone, turning enemy soldiers to allies (Romans), turning stone to iron, temporarily freezing enemies (Vikings), turning wood to gold, turning enemy bowmen into butterflies (Mayans), turning sulphur to iron, and turning enemy soldiers into normal settlers (Trojans). Military The player's territory can only be expanded by using pioneers or building a military complex near the territory border. Each complex must have at least one soldier garrisoned for the territory to expand. To recruit soldiers, the player must build a barracks, with each individual soldier requiring their requisite weapon to transition from settler to soldier. The player can also build lookout towers, which are manned by regular settlers, and which can see for great distances, but don't grant new territory. There are three classes of soldier common to all races: swordsmen, bowmen and squad leaders. The level of swordsmen and bowmen is set by the player prior to recruitment, with both types of soldier having three ranks, determined by the amount of gold necessary for recruitment (no gold for Level 1, one gold bar for Level 2 and two gold bars for Level 3). Squad leaders are available in only one rank, and require a sword, a suit of armour and three gold bars to recruit. As well as being stronger and having more health than a Level 3 swordsman, they also affect the troops around them; improving their formations, increasing their combat strategy, and enhancing their abilities. Additionally, if the player assigns a squad leader to a group of soldiers, orders need to be issued to the squad leader only; the squad will automatically follow him to the destination ordered by the player. Each race can also produce warships, war machines (catapults for the Romans, magical lightning generators for the Vikings, canons for the