Legio II Armeniaca was a legion of the late Roman Empire

Roman Empire

The Roman Empire was the post-Republican period of the ancient Roman civilization, characterised by an autocratic form of government and large territorial holdings in Europe and around the Mediterranean....

.

Its name could mean it was garrisoned in the Roman province

Roman province

In Ancient Rome, a province was the basic, and, until the Tetrarchy , largest territorial and administrative unit of the empire's territorial possessions outside of Italy...

 of Armenia, but later, together with its twin, I Armeniaca

Legio I Armeniaca

Legio I Armeniaca was a pseudocomitatensis legion of the Late Roman Empire, probably created in the late 3rd century.The name of the legion could refer to it being originally part of the garrison of the Armeniac provinces, but the unit, together with its twin legion II Armeniaca, appears to have...

, it was moved into the field army as a pseudocomitatensis legion. The legion is reported to have built a camp in Satala

Satala

Located in Turkey, the city of Satala , according to the ancient geographers, was situated in a valley surrounded by mountains, a little north of the Euphrates, where the road from Trapezus to Samosata crossed the boundary of the Roman Empire...

 (CIL

Corpus Inscriptionum Latinarum

The Corpus Inscriptionum Latinarum is a comprehensive collection of ancient Latin inscriptions. It forms an authoritative source for documenting the surviving epigraphy of classical antiquity. Public and personal inscriptions throw light on all aspects of Roman life and history...

 II 13630, through Ritterling's Legio). According to Ammianus Marcellinus

Ammianus Marcellinus

Ammianus Marcellinus was a fourth-century Roman historian. He wrote the penultimate major historical account surviving from Antiquity...

 (Res Gestae xx 7), in 360

360

Year 360 was a leap year starting on Saturday of the Julian calendar. At the time, it was known as the Year of the Consulship of Constantius and Iulianus...

. II Armeniaca was stationed in Bezabde with II Flavia Virtutis

Legio II Flavia Virtutis

Legio II Flavia Virtutis was a comitatensis Roman legion, levied by Emperor Constantius II , together with I Flavia Pacis and III Flavia Salutis....

 and II Parthica

Legio II Parthica

Legio secunda Parthica was a Roman legion levied by Emperor Septimius Severus in 197, for his campaign against the Parthian Empire, hence the cognomen Parthica. The legion was still active in the beginning of the 5th century...

, when Shapur II

Shapur II

Shapur II the Great was the ninth King of the Persian Sassanid Empire from 309 to 379 and son of Hormizd II. During his long reign, the Sassanid Empire saw its first golden era since the reign of Shapur I...

 besieged and conquered the city, killing many of the inhabitants. The II Armeniaca however, survived, since it is cited in the Notitia Dignitatum

Notitia Dignitatum

The Notitia Dignitatum is a unique document of the Roman imperial chanceries. One of the very few surviving documents of Roman government, it details the administrative organisation of the eastern and western empires, listing several thousand offices from the imperial court down to the provincial...

 as being under the command of the Dux Mesopotamiae.