View source for Spring 2021 Event/Info

{{TOC right}}

==Introduction==

The '''Spring 2021 Event''' known as '''"Clash! Night Battle off Lunga"''' is scheduled to launch on '''May 8th 2021'''. The event will consist of a total of '''5 maps''' overall.

The '''Main Operation''' will have '''3 Maps''' will primary focus on the path which the 31st (Anti-Submarine) Squadron took as they traveled from Taiwan, to the Philippines, and ultimately to Leyte Gulf. 

The final main operation map will switch gears and focus on the '''Battle of Tossfaronga''' as the final part of the MO.

The '''Extra Operation''' will consist of '''2 Maps''', and will take place in Rabaul during the Air Raid and Nutralization of Rabaul during 1943.

For additional information regarding event-related subjects and content, please refer to the following links:<br>
*[[Combined Fleet]]
*[[Armor Reduction]] 
*[[Land-Based Air Squadron]]
*[[Transport Operation]]
*[[Aerial_Combat#Anti-Air_Cut-In|Anti-Air Cut-In]] 
*[[Line of Sight]]
*[[Improving Ship Speed]] (May become a part of event map requirements)
*[[Vanguard Formation]]
*[[Striking Force Fleet]]
*[[Repairs#Emergency_Anchorage_Repair|Emergency Anchorage Repair]]

==Historical Background==

'''Disclaimer: The following information is based upon a summary of World War II history and may not have any bearing on in-game mechanics. This is for historical reference only.'''

=== Related Historical Campaigns===

'''Battle of Tassafaronga - [[Wikipedia:Battle_of_Tassafaronga|Link]]'''

In November 20th, 1942, a Japanese destroyer force led by Rear Admiral Raizou Tanaka attempted to deliver supplies to the Japanese ground forces stationed at Guadacanal. However, on that night, they were intercepted by an American force of cruisers and destroyers. Despite being outnumbered and caught in an ambush, the Japanese forces were able to take down one US cruiser and damage three others while losing one destroyer in the fight. 

Although the Japanese were able to take down several of the larger ships, they were unsuccessful at delivering the food supplies.

Historical ships related to the campaign: <br>
'''IJN:''' [[Naganami]] (Flagship), [[Takanami]](Sunk), [[Suzukaze]], [[Kuroshio]], [[Kagerou]], [[Kawakaze]], [[Oyashio]], [[Makinami]]<br>
'''USN:''' [[Fletcher]]

'''31st (Anti Submarine) Squadron'''

Late in the war, the 31st Squadron (Also known as 31st Cruiser Division) was made to help with anti submarine patrols during the late part of WWII. Doing various operations around the fronts of Taiwan to the Philippines and the finally within Leyte Gulf. The crew mainly focused on sweeping for submarines but would later be engaging in combat and transport related tasks.

The most notable battles they participated in were the [[Wikipedia:Battle_of_Leyte_Gulf|Battle of Leyte Gulf]] and the [[Wikipedia:Battle_of_Cape_Engano|Battle of Cape Engano]]

Historical ships related to this fleet: <br>
[[Isuzu]] (Flagship), [[Satsuki]], [[Uzuki]], [[Matsu]], [[Take]]

==Information==

===Quick Info Table===

{| class="wikitable"
! |Classification
! |Map
! |Name
! |Fleet Type
! |{{Tooltip|LBAS|Land-Based Air Squadron}}
! |Friendly Fleet
! |Fleet Tag
! |Notes
|-
| rowspan="3" style="text-align:center;"|'''[[Spring 2021_Event/Main Operation|Main Operation]]'''
! |[[Spring_2021_Event/Main Operation#E-1|E-1]]
| style="text-align:center;"|'''31st Squadron, Deploy!'''
| style="text-align:center;"|'''Single'''
| style="text-align:center;"|'''Yes'''
| style="text-align:center;"|'''???'''
| style="text-align:center; max-width: 8em;"| [[File:Spring2021EventTag1.png]] <br> '''31st Squadron'''
|-
! |[[Spring_2021_Event/Main Operation#E-2|E-2]]
| style="text-align:center;"|'''Battle of 6th Fleet'''
| style="text-align:center;"|'''Single/Combined'''
| style="text-align:center;"|'''Yes'''
| style="text-align:center;"|'''???'''
| style="text-align:center; max-width: 8em;"| [[File:Spring2021EventTag2.png]] <br> '''6th Fleet''' <br>  [[File:Spring2021EventTag3.png]] <br> '''3rd Fleet'''
|-
! |[[Spring_2021_Event/Main Operation#E-3|E-3]]
| style="text-align:center;"|'''Night Battle off Lunga Point'''
| style="text-align:center;"|'''Single / Combined'''
| style="text-align:center;"|'''Yes'''
| style="text-align:center;"|'''???'''
| style="text-align:center; max-width: 8em;"| [[File:Spring2021EventTag4.png]] <br> '''2nd Torpedo Squadron''' <br> [[File:Spring2021EventTag5.png]] <br> '''Combined Fleet'''  <br> [[File:Spring2021EventTag6.png]] <br> '''8th Fleet'''
|-
| rowspan="2" style="text-align:center;"|'''[[Spring 2021_Event/Extra Operation|Extra Operation]]'''
! |[[Spring_2021_Event/Extra Operation#E-4|E-4]]
| style="text-align:center;"|'''Rabaul Air Raid, Striking Force, Sortie!'''
| style="text-align:center;"|'''Single/Combined/<br>Striking Force'''
| style="text-align:center;"|'''Yes'''
| style="text-align:center;"|'''???'''
| style="text-align:center; max-width: 8em;"| [[File:Spring2021EventTag7.png]] <br> '''Striking Force''' <br> [[File:Spring2021EventTag8.png]] <br> '''Transportation Force''' <br> [[File:Spring2021EventTag3.png]] <br> '''3rd Fleet''' <br> [[File:Spring2021EventTag9.png]] <br> '''2nd Fleet'''
|-
! |[[Spring_2021_Event/Extra Operation#E-5|E-5]]
| style="text-align:center;"|'''Second Night Battle off Lunga Point'''
| style="text-align:center;"|'''Single/Combined/<br>Striking Force'''
| style="text-align:center;"|'''Yes'''
| style="text-align:center;"|'''???'''
| style="text-align:center; max-width: 8em;"|  [[File:Spring2021EventTag4.png]] <br> '''2nd Torpedo Squadron''' <br>[[File:Spring2021EventTag6.png]] <br> '''8th Fleet''' <br> [[File:Spring2021EventTag9.png]] <br> '''2nd Fleet'''
|rowspan="1" style="text-align:center;"| Lock limited to Hard Only
|-
|}

'''Fleet Locking Table:'''
{| class="wikitable" border="0" cellpadding="1" cellspacing="1" style="width: 650px;"
|-
| style="width: 180px;" |
!style="width: 100px; scope="col"|[[Spring_2021_Event/Main Operation#E-1|E-1]]
!style="width: 100px; scope="col"|[[Spring_2021_Event/Main Operation#E-2|E-2]]
!style="width: 100px; scope="col"|[[Spring_2021_Event/Main Operation#E-3|E-3]]
!style="width: 100px; scope="col"|[[Spring_2021_Event/Extra Operation#E-4|E-4]]
!style="width: 100px; scope="col"|[[Spring_2021_Event/Extra Operation#E-5|E-5]]<br>(Hard Only)
|-
! scope="col" |[[File:Spring2021EventTag1.png]]<br /> ''31st Squadron''
| style="background:YellowGreen" span |
|
|
|
|
|-
! scope="col" |[[File:Spring2021EventTag2.png]]<br />''6th Fleet''
|
| style="background:MediumPurple" span |
|
|
|
|-
! scope="col" |[[File:Spring2021EventTag3.png]]<br />''3rd Fleet''
|
| style="background:DodgerBlue" span |
|
| style="background:DodgerBlue" span |
|
|-
! scope="col" |[[File:Spring2021EventTag4.png]]<br />''2nd Torpedo Squadron''
|
|
| style="background:orange" span |
|
| style="background:orange" span |
|-
! scope="col" |[[File:Spring2021EventTag5.png]]<br />''Combined Fleet''
|
|
| style="background:Gold" span |
|
|
|-
! scope="col" |[[File:Spring2021EventTag6.png]]<br />''8th Fleet''
|
|
| style="background:grey" span |
|
| style="background:grey" span |
|-
! scope="col" |[[File:Spring2021EventTag7.png]]<br />''Striking Force''
|
|
|
| style="background:Teal" span |
|
|-
! scope="col" |[[File:Spring2021EventTag8.png]]<br />''Transportation Force''
|
|
|
| style="background:Crimson" span |
|
|-
! scope="col" |[[File:Spring2021EventTag9.png]]<br />''2nd Fleet''
|
|
|
| style="background:green" span |
| style="background:green" span |
|}

===New Mechanics===

===New Ships===

The exact number of ships to appear in this event is '''Unknown'''.

They will range from being '''ships from both Japan and Foreign nations'''

So far the following information has been confirmed:

#Main Operations
#* Matsu-class DD [[Momo]] - E1 reward
#* Sentaka-class SS [[I-203]] - E2 drop
#* Yuugumo-class DD [[Makinami]] - E3 drop
#* Northampton-class CA [[Northampton]] - E3 reward


#Extra Operations
#* Yuugumo-class DD [[Suzunami]] - E4 drop
#* AO [[Souya]] - E5 drop
#* Brooklyn-class CL [[Honolulu]] - E5 reward

===Returning Ships===

===New Equipment===


===New Enemy Vessels===

===New Enemy Equipment===

==Friend Fleet==
===Fleet Formations===
Friend Fleets will now come with a new function which will allow players to choose if they wish to bring in a Friend Fleet to aid them in battle or not. They can also choose to also decide if they want a normal Friend Fleet come aid them in battle or if they wish to use a powerful Friend Fleet that will require the cost of '''6 Instant Constructions''' [[File:Instant_construction-0.jpg]] to allow you call in a more powerful Friend Fleet to aid you into battle. 

If you choose to opt in for the powerful Friend fleet, the '''Instant Constructions''' [[File:Instant_construction-0.jpg]] will not be consumed unless a powerful Friend Fleet appears.
{{:{{BASEPAGENAME}}/Friend Fleets}}

==Voice Lines==
===Friend Fleet Voice Lines===
{{SeasonalHeaderOld}}
{{SeasonalSubHeader|Destroyers}}
{{SeasonalQuote|ship = Arashi Kai|friend = 1
|origin =
|translation =
|notes =
}}
{{SeasonalQuote|ship = Arashi Kai|friend = 2
|origin =
|translation =
|notes =
}}
{{SeasonalQuote|ship = Ayanami Kai Ni|friend = 1|event = Winter 2018 Event
|origin =
|translation =
|notes =
}}
{{SeasonalQuote|ship = Hamakaze B Kai|friend = 1
|origin =
|translation =
|notes =
}}
{{SeasonalQuote|ship = Hamakaze B Kai|friend = 2|event = Spring 2019 Event
|origin =
|translation =
|notes =
}}
{{SeasonalQuote|ship = Makinami Kai|friend = 1
|origin =
|translation =
|notes =
}}
{{SeasonalQuote|ship = Shikinami Kai Ni|friend = 1|event = Winter 2018 Event
|origin =
|translation =
|notes =
}}
{{SeasonalQuote|ship = Suzunami Kai|friend = 1
|origin =
|translation =
|notes =
}}
{{SeasonalQuote|ship = Tanikaze D Kai|friend = 1
|origin =
|translation =
|notes =
}}
{{SeasonalQuote|ship = Uzuki Kai|friend = 1
|origin =
|translation =
|notes =
}}
{{SeasonalQuote|ship = Yuudachi Kai Ni|friend = 1
|origin =
|translation =
|notes =
}}
{{SeasonalSubHeader|Light Cruisers}}
{{SeasonalQuote|ship = Agano Kai|friend = 1
|origin =
|translation =
|notes =
}}
{{SeasonalQuote|ship = Sendai Kai Ni|friend = 1|event = Fall 2019 Event
|origin =
|translation =
|notes =
}}
{{SeasonalQuote|ship = Sendai Kai Ni|friend = 2|event = Fall 2019 Event
|origin =
|translation =
|notes =
}}
{{SeasonalQuote|ship = Yura Kai Ni|friend = 1
|origin =
|translation =
|notes =
}}
{{SeasonalSubHeader|Battleships}}
{{SeasonalQuote|ship = Haruna Kai Ni|friend = 1
|origin =
|translation =
|notes =
}}
{{SeasonalQuote|ship = Hiei Kai Ni C|friend = 1
|origin =
|translation =
|notes =
}}
{{SeasonalQuote|ship = Hiei Kai Ni C|friend = 1|event = Spring 2019 Event
|origin =
|translation =
|notes =
}}
{{SeasonalQuote|ship = Kirishima Kai Ni|friend = 2|event = Spring 2019 Event
|origin =
|translation =
|notes =
}}
{{SeasonalQuote|ship = Kongou Kai Ni C|friend = 1
|origin =
|translation =
|notes =
}}
{{SeasonalQuote|ship = Yamato Kai|friend = 1|event = Winter 2018 Event
|origin =
|translation =
|notes =
}}
{{SeasonalSubHeader|Seaplane Tenders}}
{{SeasonalQuote|ship = Nisshin A|friend = 1|event = Winter 2019 Event
|origin =
|translation =
|notes =
}}
|}
<references/>

==Mechanics==
===Participation requirements===
*Must have a 75% sortie win ratio.
*Must have 5 empty ship slots for new ships.
*Must have 20 free equipment slots.

===Special Mechanics===
#The difficulty system first used in [[Spring 2015 Event]] returns: you can choose between Operation A ({{lang|ja|甲}}, Hard), Operation B ({{lang|ja|乙}}, Medium), Operation C ({{lang|ja|丙}}, Easy) or Operation D ({{lang|ja|丁}}, Very Easy) .
#*Choosing A or B requires certain HQ Level (HQ Lv 35 for B / 80 for A in Spring 2015 Event).
#*'''An important note''' to all Admirals intending to clear the event on Hard difficulty - further (new) conditions now apply:'''
#**When switching difficulty from ''any other difficulty'' to Hard, the map's debuff mechanism (where applicable) will be reset.
#***Switching between any other difficulties will not reset the debuff mechanism.
#To simulate simultaneity of battles in different locations, '''Tag Conditions & Deployment Restrictions''' are employed.
#*Ships not already color-tagged will be tagged with the color associated with the map when deployed. This tag exists on all difficulties and is not reset on remodel, etc.
#*On Normal or Hard difficulty, ships must have either the same-colored tag as the map being deployed to, or no tag at all.
#**This requirement is sometimes waived on certain maps on Hard, or post-clear.
#Beginning with the second map, '''difficulty progression rules''' apply.
#*In order to play a map on Hard difficulty, the prior map must have been completed on either Normal or Hard.
#*e.g., to do E-2 on hard, you must have completed E-1 on normal or hard.
#The debuff system from [[Summer 2015 Event]]'s final map, where certain nodes had to be attacked and other conditions fulfilled to reduce boss armor, will return.
<!---# It is possible that a fleet with '''seven''' ships ('''[[Striking Force Fleet]]''') will be allowed to sortie to certain event maps that permit '''single fleet operations'''.
#*The Striking Force '''cannot''' be sortied during exercises or sent on expeditions while it contains seven ships.
#*The Striking Force can only be created and used in the '''third''' fleet in the menu (out of a total of four fleets).
#*A Striking Force with a flagship that carries a new piece of equipment, the '''[[Striking Force Fleet Command Facility]]''', will be able to make use of the new '''Single Ship Evacuation''' mechanic.
#**The new Striking Force Fleet Command Facility will become obtainable and useable via the old [[Fleet Command Facility]] and the '''Action Report'''.
#***Note that the [[Quests#F64|relevant quest]] will consume the [[Fleet Command Facility]] in order to convert it into the new [[Striking Force Fleet Command Facility]].
#**Supplementary information regarding the new [[Striking Force Fleet Command Facility]] and the Single Ship Evacuation it allows when carried by the striking force's flagship:
#***The evacuation does not require an escort destroyer.
#***The evacuation consumes the ship's entire fuel & ammo reserves. 
#***Only one ship can be evacuated per battle.
#***'''The damage the ship suffered may become worse during the evacuation, but she will never sink.'''--->
# Returning this event, the '''Vanguard Formation''' can be used .
#*This formation will organize the fleet such that the 3rd-6th/7th ships protect the Flagship and 2nd Ship of the Fleet.
#**In addition, the formation allows for ships to become more evasive in combat situations, especially with well-trained Destroyer.
#** This formation is also available '''only during the duration of the event.'''
#**The formation will be usable by [https://twitter.com/KanColle_STAFF/status/930623111862435841 both] normal fleets as well as the Striking Force Fleet.
#'''NPC Friend Fleets''' have been introduced into the game.
#* Friend Fleets act as another unit that appears in particular battles to help aid your fleet when attacking the enemy at the start of night battle.
#** NPC Friend Fleets are selected from a randomized preset list of ship.
#** Depending on who you have in your fleet can also influence who will be arrive to aid you in battle.
#'''Enemy Radar Ambush Nodes''' have been introduced into the game.
#* Entering this node will result in your fleet facing off against an enemy fleet that will ambush and attack your fleet 
#** Your Fleet will not be able to fight against the enemy Fleet.
#** By meeting certain conditions, you can evade these nodes.
#[[Repairs#Emergency_Anchorage_Repair|'''Emergency Anchorage Maintenance/Repairs''']] 【緊急泊地修理】
#*Both [[Akashi|Akashi Kai]] and [[Akitsushima|Akitsushima Kai]] will be capable of conducting emergency repairs; however, Akitsushima has more limited capabilities compared to Akashi.
#*See under [[Repairs#Emergency_Anchorage_Repairs|Emergency Anchorage Repairs]] for details.
#[[Land-Based_Air_Squadron#High_Altitude_Air_Raid|'''High-Altitude Abyssal Bombers''']] that are resistant to all types of interceptors other than the new land-based rocket interceptors may also return this event.