December 31, 2017 Chaldea attack

Between December 26th, 2017 and December 31st, 2017 in the World of Fate/Grand Order, Chaldea Security Organization was occupied and destroyed by forces vying to prevent the Human Order Revision from being countered by Chaldea's rayshifting process.
The events of this incident are covered in the prologue of Fate/Grand Order: Cosmos in the Lostbelt, Prologue/December 26, 2017.
==History==
==Involved parties==
*Goredolf Musik - Unwitting new director of Chaldea
*Tamamo Vitch Koyanskaya and NFF Service
*Alter Ego Grigori Rasputin
*Caster Anastasia Nikolaevna Romanova
*Ivan the Terrible's Oprichniki
==Development==
Due to the North American server of Fate/Grand Order starting two years later than the Japanese server, dates were set two years later, making the date of the attack December 31, 2019 in the official English translation. 
==References==
Category:Human Order Revision
Category:Terminology in Fate/Grand Order