The Summer 2015 Event "Counterattack! The Second Operation SN" is slated to start on August 10, 2015, and will last for about 20 days. The event will be based on ''Operation SN,'' the Japanese plan to establish air bases in the southern Solomon Islands; however, there was no actual second Operation SN historically. | The Summer 2015 Event "Counterattack! The Second Operation SN" is slated to start on August 10, 2015, and will last for about 20 days. The event will be based on ''Operation SN,'' the Japanese plan to establish air bases in the southern Solomon Islands; however, there was no actual second Operation SN historically. |