Alexander the Great vs Simeon I of Bulgaria

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.

Under Simeon I, Bulgaria experienced a cultural flowering. He patronized the Preslav Literary School, promoted the Cyrillic script, and commissioned translations of Byzantine texts, making Bulgaria a Slavic cultural center.

Simeon I was crowned 'Tsar of the Bulgarians and the Romans' by the Patriarch of Constantinople, asserting his imperial status. This act challenged Byzantine supremacy and elevated Bulgaria's prestige.

Simeon I defeated a Byzantine army at the Achelous River in Thrace. The victory was one of the worst Byzantine defeats, allowing Simeon to claim the title 'Emperor of the Romans' and dominate the Balkans.

Simeon I besieged Constantinople but failed to capture the city. The siege ended with a truce, as Byzantine defenses held. This marked the limit of Simeon's expansion.