The Spring 2015 Event ''Announcement! Operation 11'' [発令!第十一号作戦] is (tentatively) set to start on April 28th, 2015. The event will be based upon the planned Operation 11. | The Spring 2015 Event ''Announcement! Operation 11'' [発令!第十一号作戦] is (tentatively) set to start on April 28th, 2015. The event will be based upon the planned Operation 11. |