There have been few historical examples of wars with three opposing sides.

One such example occurred in the 11th century, with the three belligerents being the French, the English (Anglos) and the Vikings. The rivalry between each group was quite intense, and unlike other situations, the two weaker groups at the time did not join together to fight the strongest. Instead, this conflict involved three opposing sides, each one of them desperately wanting victory.


However, as the war meandered on, it became evident to the vikings and French that the Anglos were in the better position. The leaders of both sides decided to set aside their differences and unite against the Anglos. However, English spies determined that the two other sides were making a treaty and notified Anglo government. This led the Anglo king to make a decision to send one his best officers to supervise the signing of the treaty. Not wanting the French and Vikings to catch on to his actions, he decided to have the officer pose as a Germanic feudal king.

On November 11th 1069 (this date has been debated by historians, due to the conversion to the Gregorian calendar), the French and Vikings signed the historic peace treaty in an undisclosed location in France (most historical evidence from this date is lost; documents were presumed to be destroyed by Mongol invaders). Unbeknownst to the French and Vikings, the Anglo officer would be in the room during the official signing of the treaty.

Some say it was his charisma, others say it was his disguise, but historians have verified that the Anglo spy (named Trigon O'Metry) somehow convinced his enemies to permit to sign below their names as a witness. Thus, the era of British espionage began, and the two opposing sides conducted business as usual, neither of their leaders being none the wiser.

Early war industries in France and Sweden worked in overdrive, producing twice the weapons and military supplies than they had earlier, due to the cooperation between the nations. In a poor decision on both sides' part (which ultimately led to the end of the war), both the French and the Vikings decided to pool their resources, sending fleets of vessels into the middle of the sea. The whole fleet would contain all of the resources each empire produced, which if you remember, was twice the normal output. In addition, the French and Vikings each sent their best squire, in preparation for their invasion of the Anglo empire. However, the Anglos knew that they were coming (mostly due to the effectiveness of their spies) so they had sent their best squire, whom they had trained for months. This squire swam all the way across the English channel to the coast of France, where he would single-handedly conquer the French empire.

Not everything went so well for the British. Suspicion by the French general Al-Titude led to the discovery of the British spy. So, O'Metry was then sent to board the vanguard of the Viking-French fleet (or the French-Viking fleet, depending where you're from). However, this fleet was virtually unguarded, which allowed the British to capture them easily.

So began the course of the final battle of the war. The British, having captured the Viking-French fleet and holding it in the French port city of Paris, possessed nearly all of the firepower of the opposing sides. In addition to this, the British rescued their POW spy. The only thing left to defeat was the French and Viking squire, who were stationed in Bordeaux with a new mission to repel the incoming British invasion. Little is known about the battle, but the following is certain:

The squire of the side opposite the Anglo is equivalent to the sum of the squires of the two opposite sides minus twice the products of the opposite sides and the cosign of the Anglo.