From Shining Moon Wikipedia
War Effort is a new server feature that enables players to contribute to a big pool of different server-wide item requirements and quests. Completion of a War Effort will activate the Exchanger Album Event (ECA) with a duration of 24 hours. Players are able to donate and track the progress of the requirement pool by talking to the War Effort NPC in @go office (2nd Floor).
Effort Types and Completion Requirements
There are a total of 4 different War Effort Types. Each Effort varies in completion requirements. All players can donate to the War Effort pool. There is no minimum or maximum limit for contribution.
After the requirements of a specific Effort has been met, the Special Announcer NPC in Fortessa will declare a 24h countdown until the activation of the ECA event.