My world (actually worlds) has a multiverse that has two empires at war with each other. They travel through universes via portals built by an even older multiverse civilization, which was destroyed in unknown circumstances.
One civilization is machine based and the other is magic based.
The first civilization has a military much like ours, but with some exceptions.
- They aren't as developed in their understanding of biological as we are. (about 50 or 60 years behind us)
- They have more advanced AI than we do.
- They don't have any nuclear weapons.
Their ground military is made up of lightly trained units for large operations, and more highly trained scouts and special forces units for operations requiring a delicate touch.
In addition to this, they have a robotic mobile artillery walkers and an Air Force entirely made up of drones.
The other is magic based - everyone can use magic but it requires specialized training.
First, they have the regular infantry with little to no training with simple medieval weapons and no magical enhancements. However their officers are required to take at least a two-year course to learn how to control one of the 4 elements (earth, fire, air, water). The ratio of officers in the infantry is 1 to 50.
Second, there is the cavalry. While they don't have magic, their armor and weapons are magically enhanced. The enhancements make their armor bullet-proof and their weapons able to slice through almost anything, and they also enhance the strength of the wearer.
Third, there are mages (not to be mistaken for the officers who only take one or two years magical course to learn how to control one of the elements). To be a mage, it can take up to 8 to 10 years training and most armies only have one or two Mages in them.
Types of Mages
Healers capable of healing any injury, and even raising the Dead to an extent.
Storm singers capable of controlling the weather.
Summoners capable of summoning magical spirit creatures into these worlds. Spirit creatures can be injured but not killed - the only way to get rid of them is either to banish them with magic or kill the Mage who summoned them. Your average Mage is able to summon up to 30 lower Spirit creatures( think unicorns,lesser Fae), up to 10 mid-level Spirit creatures (think werewolves and vampires).
Necromancer mages - mages who can turn the enemy dead on the battlefield into Undead hordes loyal to the mage.
For this particular story, both sides prepare to invade what they think is a defenseless world whose inhabitants lack both technology and magic.
Unfortunately, it turns out that both portals take them to the same open field with only about half a mile from each other. This forces them into an unexpected conflict with each other.
Note: the portal was built by the ancient civilization, is only about twenty feet across, and both sides have an equal number of troops.
My question is: this in this circumstance does one side have a clear advantage over the other? And if so, what can I do to make them more evenly matched?