...Well since no one else is here suggesting anything and I have nothing better to do...
Name: The Provina Confederation.
The Provina Confederation is a fairly autonomous union made up of a few kingdoms, duchies, and republics in the lands of Provina, the most prominent nations being Eisenkrone, Helderzee, Starkebrisen and Alverlon. They are mainly united due to economic and political reasons, however the similar culture and languages that all but Alverlon share aids their bonds, however Helderzee is somewhat divergent from the others. The main species of the Provina Confederation are Katzarin (a human like people with cat like features), Verhal (A agile human like people with crow wings who can see in the dark), Verstark, (A tall strong human like people with raven wings who can see in the dark), Wolrin (A human like people with wolf features), and Humans. The Katzarin are prevalent in Eisenkrone and Helderzee while the Verhal and Verstark are prevalent in Starkebrisen. Alverlon is mainly made up of Humans and Wolrin. They have struck their northern neighbor due to declining relations, need for further resources, and the manipulation behind the political scene by a mysterious mastermind playing the leaders like pawns... It is also important to note that the Confederation is allied to a nation known as the Unirea Aripilor daur, made up of Balaur (Tall Human like people with dragon traits, including wings, who only eat meat.), Drakon (Tall Human like people with dragon traits, not including wings, who eat meat and metal) , and Virm (Tall Dragonic like Naga folk who's top half is mostly humanlike, and is the only omnivorus of the three.). However their alliance is a defensive one, though in the future their ally might send volunteer forces...
B4 is Starkbreezen Hill lands. Mainly rocky and grassy hills and caves dot the terrain with occasional settlements.
B1 is Starkbreezen Mountan Lands. Tall imposing mountains with the occasional city or town of Verhal and Verstark who fly about the place with ease.
B5 is Eisenkrone farmlands, filled with farms and fields, with a number of more grassy hills in the west near Starkbreezen territory, it's capital upon a small mountain surrounded by these hills, though other than this small area most of the place is mostly flat ground.
B2 is Alverlon Ruins, a strange place where the Pravian Empire once was seated. Strange magics and technologies are hidden away here.
B6 is Helderzee lowlands, a fairly costal area with a number of islands and shores.
B3 is Alverlon Floating islands. A number of flying islands and the cities on top of them connected by airships and bridges, with a vast sea below them.
BC is Veloxflumine, a city made many years ago back in the day of the Pravian Empire, reduced to a city state and in decline for many years until the Confederation formed. Now it serves as the political capital of the alliance, and where the members of the confederation meet.
Leader: Amber Hawkins
Amber Hawkins was born to a noble family in Alverlon, years before the confederation was even dreamed of. Her family was in control of a couple of counties, but otherwise nothing too special. She grew up similarly to any other at the time would, with little say in her life however, she in her free time always watched and tried to learn from their families spymaster, whom she slowly gained a friendship with. Of course such things weren't to last as her duty to her family meant she was married off to some duke when she came of age, a duke that she didn't exactly care for. However, luck would have it, the particular duke in question was quite a fan of Banquettes and other party's, which let Amber meet a lot of people, and one of those people had an offer she couldn't refuse, the only payment was blood...She managed to hide the fact she had turned into a vampire quite well and started making moves to further gain influence, utilizing every trick in the book, both diplomatic pen and deceptive intrigue and underhanded moves. However a minor tragedy struck when her family found themselves the victims of an assassination plot, one she did not know of until it was too late. Needless to say, she found the one who did such a thing and mercilessly dealt with them before ruling over her newly inherited lands and continuing to expand her influence, eventually even removing her 'master' that turned her initially. However, these plans would be cut short by a scholar who drove her into hiding away and entering a slumber for hundreds of years...When she awoke things were drastically different from what she remembered. However her skills had not gotten rusty, and the stash of valuables and other such things was still intact and not stolen from her. So, she utilized the skills she gained from that old spymaster to good effect to eliminate any potential threats as they came up while making allies and friends, and with the other nations so closely tied together, her plans have become far more ambitious, and made things all the easier...
Despite mainly being a chessmaster, Amber isn't afraid to do things herself, and has a mini crossbow with bolts laced in a sleep toxin, alongside a grapple hook, truncheon and a myriad of other equipment. She isn't exactly a direct fighter, relying upon stealth and blood magic mainly when in a fight, or for other's to do her work for her as she has planned...
Supporting Units:
Name: Starkebrisen Windreiter
Description: The people of the Starkebrisen Republic are a people capable of flight. As such, their tactics mainly involve skirmishing, and their forces represent that. The Starkebrisen Windreiter are a force made up of volunteers. Armed with rifled caplock muskets and flechettes, their main goal is to harass and harry an enemy force and whittle them down. And naturally, due to how they operate, they easily can slip behind enemy lines and right back over, along with strike hard at night utilizing their natural night vision to their advantage. Naturally, their uniform is blue and white, with a bit of grey, matching the tricolor of the Republic they hail from.
Trait: (Not sure, so I'll just leave this empty for now)
Name: Helderzee linie infanterie
Description: The people of Helderzee gained their independence long ago thanks to their line infantry. While things have changed a long way since then with advanced technologies and the like, the nature of combat still remains mainly the same for the people a part of the Provina Confederation, at least for now anyway. The main advantage of this force is the fact that they fire by Platoon as opposed to the whole line, allowing a continuous hail of bullets to strike the enemy and prevent them from properly returning fire without the calm that the time between reloading would grant them. Still, they are well drilled Katzarin men ready to fight.
Trait: (Same as above)
Name: Eisenkrone Kürassiere
Description: Eisenkrone has long remained a nation with a extensive tradition, including that of cavalry. Part of that tradition, which is shared by Helderzee, is that men are infantry, and such a role is fitting of such, however things that have the aid of many tools or animals, and in the case of military that means such roles as sailors, artillery, or cavalry, is womanly. The Eisenkrone Kürassiere are a cavalry force well protected and made up of brave Katzarin Women ready to charge with pistol and sword protected by a modest amount of armor, able to strike fear into their foes and inspire their allies.
Trait: (Again, read the first one)
If you want I can go into far more detail about the various races I mentioned and the cultures of the nations, but basically Alverlon is english styled while Starkebrisen and Eisenkrone are more germanic, with Helderzee fittingly Dutch. If there's any further questions I can provide them. Regardless tech level for them is roughly equivalent to early 18th century (plus civilian airships) and ideally will start getting into steampunk territory later on.
Edit: For a TLDR of the nation. It's Anime German confederation with Britain and the Netherlands made up of kemonomimi folk and humans that is being manipulated by an old and powerful vampire and has some support in the form of sort of Austria-Hungary made up of Romanian, Bulgarian and Serbian dragon, drake, and wyrm monstergirls/guys that aren't actually in the war but are still supportive.