Derbent is the southernmost city in Russia. It also claims to be the oldest city in Russia. Some structures in Derbent are 5000 years old. The ancient city, the fortress, and the citadel are all World Heritage Sites. In Ace Combat Assault Horizon the NRF take control of Derbent and the important oil pipelines there. Task Force 108 along with Russian Forces take back the city. In a last ditch attempt to keep the city out of Russian control, Markov launches a trinity missile at the fortress, where all the Russian forces had rallyed at. The missile is stop by Warwolf Squadron.