How about SD: Total War?
Anyway, a brief, but not completely inclusive, look at my armies, the Army of the Crimean Republic.
Crimeans
The Crimeans are the founders of the Crimean Republic, having colonized the area around the Black Sea after the fall of their original city, Kathros. Their original leader, Crim, lead them to the northern coast of the Black Sea and settled there, and a number of Crimeans can trace their lineage back to Crim. They created a republican form of government, feeling Kathros fell due to the failings of hereditary monarchy. While on the Black Sea, they turned toward trade, creating a small merchant empire.
Because of this, the Crimeans provide the entirety of the Crimean navy, being among the most advanced shipbuilders in the world, with supersized transports (probably around 1.2x larger than a regular transport, while costing about 1.2x more than a regular one, if that's cool), and warships armed with onagers.
The Crimeans also provide the bulk of light and heavy infantry to the Republic, as the Republic maintains a professional army and utilizes farmer and herdsmen militias to shore up numbers when necessary.
Surtites
Living in and around the active volcano Surt are a race of giants immune to the effects of fire. They came into contact with the Crimeans shortly after their expansion as traders, and the Surtites saw the benefit of becoming active trade partners. The Surtites, already have an elective monarchy, and having lived alongside the Republic for a few generations, decided to join the Republic in total and became full-fledged voting members in the Republic.
The Surtites provide super-heavy infantry, as they are fire giants that are 15 feet tall and weigh approximately 3,100 pounds (+/- 600 pounds). They are, essentially, living tanks.
Deep Ones
Living in the Black Sea is a group of fish men known as the Deep Ones. These fish men were summoned by the Crimeans past, binding the Deep Ones by a compact to the Republic. The Deep Ones provide excellent fishing grounds to the Crimeans, and safer transport within the Black Sea, in exchange for exotic meats (horses, cows, dogs, cats, etc.) and the precious stones which they are so jealous for (amber, ruby, sapphire, etc.). They are technically a full-part of the Republic, but they don't bother taking part in the elections except when something dire is happening and leadership is needed.
The Deep Ones are amphibious and act like a group of marines. They can board hostile ships with ease, sink hostile ships from underwater, and attack coastal provinces. They do not like to stray far from the coasts, though, and will only attack coastal provinces. Further, they can engage in night warfare in even the darkest conditions, as they are well-adapted to seeing in the inky depths of the Black Sea.
Iorikids
Originally traders from the far north, these men plied the rivers and streams from their homelands all the way down to the Black Sea, seeking trade and treasure. They found it in the Republic, and have stayed there ever since. They have strange, barbaric customs and tend to keep their animal totems, primarily the bear and the boar. Some of them even have the ability to transform into hybrids of man and their totem, creating monstrous, powerful warriors who fight until death.
The Iorikids, descended from legendary Iorik, are primarily heavy shock infantry, with some of them being super heavy shock infantry as lycanthrope berserks.
There are some others, but I'm still working on them, but those are the basics thus far.
SDNet: Unbelievable levels of pedantry that you can't find anywhere else on the Internet!