The Alaska-class battlecruisers, or large cruisers, with extra firepower and armour, were constructed to serve as "cruiser-killers" and bombardment ships. Alaska's 12 inch guns would have given her a massive advantage against normal cruisers, if she had seen any. She was commissioned in 1944, saw relatively little action, and was decommissioned and scrapped in 1950s.
Named after the then-Territory of Alaska. Alaska has since become a U.S. state.
I can hear that, the voice of commander. I'll give you promise of my whole life. Let us fight against enemy with our symphony. 我听到了哦，司令你心灵的奏鸣。我愿将一生的誓言奉献给你，让敌人在我们的共鸣曲中粉碎吧。
Anti-air battlecruiser, who has the second highest anti-air value in game. (1st is Vanguard.)
The AA Gun is also a good equipment for ships with not enough AA value.
She is good enhancement material for AA as well.
Alaska and Guam are "Large Cruisers," not battlecruisers or heavy cruisers. The US navy named both of them after territories to give them an intermediate status between cruisers (named after American cities), and battleships (named after states).