King Dongmyeong of Goguryeo vs Orodes II of Parthia

Jumong, later known as King Dongmyeong, founded the kingdom of Goguryeo in the region of present-day North Korea and Manchuria. He established the capital at Jolbon and united various tribal groups, creating one of the Three Kingdoms of Korea.

King Dongmyeong built the first Goguryeo fortress at Jolbon, which served as the kingdom's capital and defensive stronghold. The fortress protected the nascent kingdom from external threats and symbolized its sovereignty.

King Dongmyeong led military campaigns against the Malgal (Mohe) tribes in the northern frontier, securing Goguryeo's borders. These victories expanded the kingdom's territory and established its dominance over neighboring nomadic groups.

King Dongmyeong organized Goguryeo's society into five major tribes (Sunobu, Jeollobu, Sunnobu, Gwannobu, and Gaerubu), creating a centralized administrative structure. This system formed the basis for Goguryeo's governance and military organization.

Orodes II ordered the murder of his brother Mithridates III, who had contested the throne. This act consolidated Orodes' power but deepened the dynastic strife within the Arsacid family.

Orodes II's general Surena defeated the Roman army under Marcus Licinius Crassus at Carrhae. Crassus was killed, and the Parthians captured the Roman legionary standards, marking one of Rome's worst military disasters.

Orodes II executed his general Surena shortly after the victory at Carrhae, fearing his growing popularity and power. This act eliminated a key military leader and weakened Parthia's military capacity.

Orodes II invaded Armenia to install his son Pacorus I on the Armenian throne. This campaign expanded Parthian influence into the Caucasus but also provoked Roman retaliation.

Orodes II's son and heir Pacorus I was killed in battle against Roman forces at Gindarus. Orodes, devastated by the loss, abdicated the throne in favor of his son Phraates IV and died shortly after.