Board Thread:Questions and Answers/@comment-1820055-20140709112904/@comment-24663964-20140709124119

c07 - 提督が鎮守府に着任しました. これより艦隊の指揮に入ります！

c09 - 提督が鎮守府に着任しました. これより艦隊の指揮をとります！

both are saying like "a new admiral has taken up a post at the base, and from now on will take command of the fleet."

my translation is rough.