Pest Wars

The Pest Wars were certain invasions of the Pests from the void to the rest of Europe, the English scouts were the first to discover the buildings that contained the portals, they destroyed it but weren't aware that there were millions of pests in the island, and had to escape, they then notified the rest of the nations, who rose on arms to neutralize the invaders.

Forming the Group
The first days were just unit movilization and very fast battles, commonly just getting rid of scout units on highways, the only significant battle was that in which NoX discovered a city on the vicinities of Germany, the Germans aided on the siege of the city, which was later taken and used a rendezvous place for the group, China was being lead by Russia, they arrived into the city just in time to watch the Pests flee, they attacked them, but they managed to escape, RuneScape and England arrived later to occupy the city too.

Biological Data
All the war prisoners took by the "European Medieval Coalition" (As the Russians called the group) were given to a laboratory to practice experiments on them, the researchers found that those Pests were from a totally different species than those of the Pest Control island, they were very much larger and were able to wield weapons, they resembled purple skinned humans and some other humanoid creatures, such as ogres and giants; this led to the scientists that there was some sort of infection of a virus, this was discarded as there were possibly one million times more Pests than Humans, Ogres and Giants combined, so that wasn't the case, they finally found that those Pests had shapeshifting abilities, and were created with magic in the "Pest Realm".