Alexander the Great vs Yelu Abaoji

Alexander led his Macedonian army across the Hellespont into Asia Minor and defeated a Persian force under local satraps at the Granicus River. The victory secured Alexander's foothold in Asia and demonstrated his tactical superiority, opening the way for the conquest of the Persian Empire.

Alexander's army defeated the Persian king Darius III at Issus in Cilicia. Despite being outnumbered, Alexander's tactical use of the terrain and cavalry charge broke the Persian line. Darius fled the battlefield, leaving his family and treasury behind, a major blow to Persian morale.

Alexander besieged the island city of Tyre for seven months, constructing a causeway to breach its walls. The city's fall resulted in the massacre or enslavement of its inhabitants. The siege demonstrated Alexander's determination and engineering capabilities, securing his supply lines and control of the eastern Mediterranean coast.

Alexander faced Darius III at Gaugamela in Mesopotamia with a massive Persian army. Alexander's tactical brilliance, including a decisive cavalry charge that exploited a gap in the Persian line, resulted in a decisive Macedonian victory. Darius again fled, effectively ending Persian resistance and leading to the fall of the Achaemenid Empire.

Alexander founded the city of Alexandria on the Mediterranean coast of Egypt. He personally selected the site and oversaw the initial planning. Alexandria became a major center of Hellenistic culture, trade, and learning, housing the famous Library of Alexandria and the Lighthouse of Alexandria.

Alexander crossed the Indus River and defeated King Porus at the Battle of the Hydaspes. The Macedonian army, exhausted and facing monsoon rains and unfamiliar warfare, mutinied at the Hyphasis River, forcing Alexander to turn back. This campaign marked the easternmost extent of his conquests.

Yelu Abaoji was elected khagan of the Khitan tribes, unifying them under his leadership. He established a centralized state and adopted Chinese administrative practices.

Yelu Abaoji proclaimed himself emperor, founding the Liao dynasty. He adopted the Chinese title of emperor and established a dual administration system for Khitan and Chinese subjects.

Yelu Abaoji ordered the creation of a writing system for the Khitan language, based on Chinese characters. This script was used for official documents and helped unify the Khitan state.

Yelu Abaoji led a campaign that conquered the Korean kingdom of Bohai, incorporating its territory into the Liao empire. This expanded Liao's influence into Manchuria and Korea.

Yelu Abaoji died while returning from the conquest of Bohai. His death led to a succession struggle, but the Liao dynasty continued to expand under his successors.