The Second Dacian War
Contributed by David Verne
As the Romans continued to build infrastructure and stockpile supplies on their side of the border, the Dacian king, Decebalus tries to come up with a way to beat Rome. He invited the Roman commander, Longinus, to the Dacian capital for a conference. Decebalus captured Longinus and tried to ransom him back to Trajan. He would return Longinus if Trajan abandoned all territory ceded to Rome in the last war and reimbursed Dacia for the last war. As Trajan tried to stall for time, Longinus managed to procure poison and killed himself to deny the Dacians a valuable bargaining chip. With his hostage dead, Decebalus launched an attack on Roman territory north of the Danube.
Trajan immediately left Rome and headed to the front, where the Romans had managed to defend the area around Trajan's bridge, which was still under construction. The bridge will be completed next spring, just in time for a massive assault into Dacia.  
- Dando-Collins, Stephen (2010). Legions of Rome. St. Martin's Press.
- Duncan, Mike (January 10, 2010). 79- The Dacian Wars.