If you're looking for anime similar to Zipang, you might like these titles.
During WWII, the Japanese discovered a mysterious source of energy which they used to power their most advanced battleship, the Ra. Unfortunately for them, so did the Americans; and as the two ships faced each other in battle, both were sunk and their secrets were lost at the bottom of the sea. Decades later, Go and Annette embark on a UN mission to investigate strange phenomena near the South Pole… or so they think. As Go discovers truth behind Ra’s origins, he and Annette must enter a desperate war where the fate of humanity lies at stake.
Ayaka is a typical twelve-year-old girl who takes her comfortable city life for granted, brushing off her grandmother's tales of World War II. On a day like any other, the girl begrudgingly takes her dog Ryan for a walk when she's forced to flee into a telephone booth to take refuge from a sudden storm – and that's when it happens. Lightning strikes, teleporting her and Ryan sixty years into the past, several days before Tokyo was bombed and 100,000 people lost their lives. Stranded from everyone she knows and the comforts of home, Ayaka must struggle to survive amidst the hardships of war, all the while trying to find a way home.
An alternate retelling of the Pacific War during World War II, with Admiral Isoroku Yamamoto leading Japan to victory against the USA.
After successfully bombing Pearl Harbor, Momotaro over sees construction of a Japanese base with the help of his animal fleet along with some new recruits & volunteers. Their new mission is to attack the American troops occupying the island of Sulawesi.
Azur Lane, a combination of all the different Camps in the world, was once successful in repelling the underwater menace, the Siren. Now splintered, they must face a new threat in Red Axis, former allies who crave to wield this otherworldly Siren technology for their own nefarious desires! Who will be victorious in the never-ending war between these battleship girls!?