User blog comment:Batran99/Mervuemeringue in the wikia?/@comment-6138112-20140115222354/@comment-5590986-20140115222647

it was when Ethan was in civil war. But Guiyii2 still wants Mervue to join their side. However Mervue never declared an official side but he was considering joining Arceus' and all that. When Mervue arrives to join Arceus' side, he might be a couple wars late...or something

http://www.youtube.com/watch?v=HE6NjIWfY8g&list=UU-xE9QbhohSjTflBtERUE9A&feature=c4-overview