The one day war

Jaffin Natit
The Principality of Jaffin had enough of the raiding of it's trade ships and declared war on the Assertion of Natit. The Assertion was expecting it and already had plans to absorb Jaffin into it's growing trade federation.
The general of Jaffin, a man named Ventri, devised a cunning plan to move his entire force in a single stroke to capture the eponymous capitol of Natit. Putting his troops in place in old mining tunnels near the city he intended to raid as soon as war was declared. An hour after the declaration was to be delivered he stormed in the city with a minimal of resistance. Enthused he captured the council of Natit and contacted Prince Jafret to confirm his success.
At the same time, a spy close to Prince Jafret had alerted the council of Natit of the impending war early. The general Horus decided to stop things once and for all and used a found an ancient mass teleport device to move almost all his force into the center of Jaffin immediately on the date of declaration. They invaded at the exact hour of the declaration of war. The prince and his family were hostages and Horus tried to report back to the Council of Natit.
This immediate capture of both sides of the opposing capitol and governing body led things to a bit of a stalemate. Both sides were victorious and both surrendered within hours of the declaration of war. It took the rest of the day, and a near assassination of the prince to resolve to cancel the war and call a lasting truce. The immediate withdrawal of both military forces occurred the next morning.
These city-states eventually were absorbed by the Enclave of Waters and the Argon Empire but never fully resolved anything other than a truce. Some of the old timers still consider that the feud was never finished, and might flare up at any moment.