Shoukoku no Altair

Similar Middle Eastern setting. Both have the main character in late teens with heavy responsibilities. 

Both are about a young intelligent MC who travels around his and other country's in order to help their country. Through their travels they learn about the different kind of culture and politics each city has. Its an adnventure set in older times with the same feel although to be honest Arslan Senki was a better anime, but i enjoyed both. 

Both anime story about military, strategy and war that very interesting to watch 

While they aren't similar in plot, the shows are similar in aesthetic feel and theme. Both shows take place in ancient time in foreign countries and center on war. In Altair, the protagonist isn't a prince, but a Pasha (sort of like a military general) and he (like Arslan) is a pacifist and wants to prevent as much death and war as possible. So when fighting comes about, the protag for Altair (Mahmut) comes up with creative ways to avoid war and death.  

historical era war and war strategies MC's have few common traits similar atmosphere  

Both are epic stories, and depict heroes who have to live an incredible odysey to fulfill their dreams/destiny. Both Shoukoku no Altair and Arslan Senki have historic inspirations (Persia, Turkey) and are good if you want to learn more about or are interested in military/diplomatic strategy. Furthermore, I found these anime had very good animation, music and character design. They do not leave the slightest opportunity to get bored ! 

Protagonist of the two anime is similar, Arslan a little bit inept compared to but their moral stances are the same. Strategy is an important case for the animes. 

they both have similar scenarios. they both have similar characters. Both are on a historical theme. One is Iran, one is Turkish history. Neither of them ends with a beautiful finale. 

Fantasy historical fiction that focus on war and politics. Altair is more realistic/dramatic and has elements of economics and a greater emphasis on politics. Alderamin has fantasy and magic elements, as well as more comedic moments, but still maintains a level of realism and focuses more on the impacts of war. Alderamin's technological level is around the Age of Enlightenment (specifically late 19th century) while Altair occurs sometime around the 15th century. Both take place during transitional periods for new technologies and ways of thinking, particularly when applied to warfare, as well as the consequences of advancing war beyond swords and chivalry. Alderamin is vaguely middle eastern in setting while Altair is set in a fictional Ottoman Empire. read more 

Main characters are battle geniuses, both of them want to avoid war but will fight when needed and come with the best solution for that time, the difference is that one wanted to be in the position of power to prevent it and the other one just wanted to have a good life and get away from all of this. Anime focused on war, strategies, culture clashes and their consequences, they both try to show the bad side of war and that sometimes it's inevitable. 

both historical animes and you'll definitely enjoy the plot and strategy in both these shows 

Both stories are set in a turmoil/warring period and both plots (unlike typical shounen series) do not progress by simply fighting but rather by focusing on bigger picture -- in Kingdom there are the strategies and ideals while for Shoukoku no Altair its the political and economic relations. P.S. For Kingdom, just endure the awful CGI and you'll find yourself a good story. 

Kingdom politics + romance 

Similarity 0. 2 great nation is at a volatile situation and about to have a war(FPA with Galactic Empire, Turkiye with Balt-Rhein Empire) 1. Blond, noble, young, intelligent but sometimes reckless and cannot-hold-their-emotion Protagonist (Reinhard and Mahmut) 2. Conspiring Politician (Adrian Rubinsky and Minister Louis) 3. Lots and lots of characters(Their name is even subtitled) 4. The first episode is a literal info dump and put us in medias res 5. Culture Porn (FPA is America/French, Galactic Empire is Prussia, Turkiye is Ottoman Empire, Balt-Rhein Empire is Austria with their Holy Roman Empire) 6. Focus at Millitary and Politics Difference 1. LoGH has a lot of dialogue compared to Altair 2. LoGH is a Sci-Fi. Altair is a Low-Fantasy 3. LoGH takes place in a fictional....well... space. Altair takes place in a fictional pre-renaissance late middle age Baltic Europe Will be Updated as the anime goes  read more 

Both shows have the main character engage in their continents' politics: Mahmut as a high commander and Youko as... well, telling more than the series description about what and where she ends up would be a spoiler. They both experience similar kinds of dilemmas and grow to fulfill their responsible roles better. They both show some skill in fighting opponents head on and use tamed/servile creatures to help them. Both shows also show decisions made by various governments, usually from the court's perspective in both and also from the peoples' in Juuni Kokuki. 

Sinbad and Mahmut Feel very similar (Hell most of the time i feel like i an watching Sinbad) Both MCs are on their journey to become Bringers of Peace and are heavily against open wars. The Worlds many be different and the way they are going about it might be a bit different but they just give me the same feeling.