ArceusFan2013 creates the UMU, and shortly after, Multi Mappers declares war on him, with Zephyrus Mapping joining Multi Mappers. ArceusFan2013 then says "You were stupid enough to do it...I had no choice...I will not let you guys take over! Brandon is the true Leader of this wikia and soon to be...This group!" in the comments section, and they start building nukes. Goldenrebel25 and MrOwnerandPwner then join the war with Multi Mappers.
The GMA, the UPMU, and the AAA are at war with the UMU, and ArceusFan2013 tries to claim that the side against him is the Axis, and he is the Allies. This causes confusion across the Wiki. Later, ArceusFan2013's page is vandalized, which angers Batran99. However, he then remains neutral.