They were very prolific ambushers most Celtic territory was wooded with many places to launch such attacks from, and these types of soldiers would be of most use in similar terrains. However, they also used them to weaken campaigning and marching foes, and as a light warband for raids, as well as screen their armies. Historically, the Celts had to rely heavily on skirmishers when their armies were weakened. If left into a melee, they will break and flee. They are actually more akin to a militia arm, and are employed by tribes in dire need of defense they are best employed as hit-and-run soldiers. In an army, they generally act as a screen before the main force, loosening the enemy formations before the older warriors charge. Imannae The Imannae (Im-an-ay Ambushers) are youths used throughout many less developed Celtic territories to ambush and disorient enemies. Their weapons and equipment would be whatever they could afford personally, usually simple hunting implements, such as a hunter's spear, and a shield. Those not in the warrior class would be levied into warbands at times, or form their own militias in their towns to defend themselves from outsiders and act as a type of early police force. This doesn't mean everyone was a warrior though. Historically, the Celts, being a warrior culture, encouraged their people to engage in sports and games that would increase their physical strength and preparedness for war. They may train a few times a year to fight, and games and sports encourage a decent level of physicality, but they're still only militia, and can only be trusted to do so much. Militia in Celtic societies, called Lugoae (Lug-oo-ay "Levy Troops"), are farmers, craftsmen, fishermen, and so on, called to brief military service in periods of crisis.
Heavier infantry and other units can be raised from regions outside Britain, like Goidlic infantry from Ireland and Belgae cavalry from northern Gaul.ĭuring periods of strife and war, it is necessary sometimes to call upon ordinary citizens to organize as militia. This unit list shows Casse troops and regional Briton units.
Most of their units have lower than average morale, but many higher upkeep units raise allied morale, to encourage the Britons to continue to fight. They support their armies with chariots, light horsemen, and most importantly, 'champions' of various types. The Casse rely on skirmishers in early armies, but progressively more shock infantry.