Submarine 707R(2003)

Submarine 707R is an action anime series that follows the aftermath of a devastating terrorist attack on an international naval alliance. When Admiral Red's USR submarine destroys most of the Peace-Keeping Navy's fleet during their inaugural ceremony, an obsolete Japanese submarine sacrifices itself to save the flagship. Six months later, Captain Youhei Hayami is recalled to lead a new crew and command the rebuilt submarine 707 in an underwater war against terrorism. The series blends military strategy with high-stakes combat as Hayami trains recruits and confronts the ongoing threat of the USR organization. Submarine 707R delivers intense naval warfare and explores themes of duty, sacrifice, and redemption through submarine combat sequences and character-driven storytelling.