The Legend of the Galactic Heroes: Die Neue These is based on the epic 10-volume novel series by Yoshiki Tanaka (which, by the way, is being released in English at a pace of 2-3 books a year, so we’ll eventually have the whole thing in a couple years).
In the far future, humanity has colonized the stars and formed the Galactic Federation. But eventually a politician seized control of the government and declared himself emperor. Some of his subjects rebelled and escaped to form the Free Planets Alliance, a new republic that is not recognized by the Galactic Empire, and the two factions have waged war for over a hundred years.
A lot has changed since last year. Amazon’s Anime Strike service has been shut down and everything previously streaming on it has been rolled into its baseline Amazon Prime service. While this does not help fans without Amazon Prime, American fans are no longer being charged a few extra dollars for the same content their Canadian counterparts have been getting as part of their baseline service.
Additionally, HIDIVE is coming into its own as an alternate streaming service with its own exclusive licenses. It doesn’t have a free streaming alternative, but the monthly subscription is affordable and their library is deep with several exclusives.