{{Notice|Please be advised that [[Friend Fleet]] for the Winter 2019 Event will be implemented upon entering the latter half period of the Event before its end. Exact Date is not known at this time.
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{{Event/Header
{{Event/Header
|title = Assault! Buin Defense Operation
|title = Assault! Buin Defense Operation
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|banner_type = jpg
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|banner_type = gif
|text =
|text =
|thread = 693662
|thread = 693662
|maintenance_start = December 26 2018 11:00:00 +0900
|maintenance_start = December 26 2018 11:00:00 +0900
|maintenance_end = December 27 2018 03:30:00 +0900
|maintenance_end = December 27 2018 03:30:00 +0900
Fleet builder: kancolle-calc.net (includes calculators for air power and defense, attack power and damage, ELoS, contact rates, special attack trigger rates, accuracy and evasion rates, overkill protection, sortie and repair consumption, transportation points, sharing)
Aiming to Stream Day 1, and whenever is convenient. Definitely at best, Normal Mode. Depending on reward, maybe Hard. Stream will be a more casual/interactive type. Will contain lots of salt during the stream.
Hard Mode Frontline Live Stream on Day 1. Start Time may have delays due to Wikia and Information Publications taking priority, and is subject to a more later time if work comes up.
"It may not be at my best also I'm not confident to do Hard mode in all maps, but I will try to clear this event and not letting my ships sunk not one of them. Grab your popcorn with salt flavor cuz it's about to get salty... "