The Roman-Dacian Wars were a series of conflicts between the Roman Empire and the Dacians, a group of tribes located in what is now Romania and parts of Bulgaria. The wars took place primarily during the reign of Emperor Trajan in the early 2nd century AD, with two main campaigns occurring from 101 to 102 AD and 105 to 106 AD. The Romans aimed to expand their territory and secure valuable resources.
The first war ended with a Roman victory, leading to the establishment of a Dacian client kingdom. However, the Dacians, led by their king Decebalus, continued to resist. The second war culminated in the complete conquest of Dacia, which became a Roman province, significantly enhancing the empire's wealth and influence in the region.