By taking the eastern Mediterranean coast to secure his base and source of soldiers, and to ensure no naval invasion of Greece, and then turning to destroy the main Persian army.
he built it on the year of 334 b.c
In 336 BCE after his father's death, when he took over his father's plan to conquer the Persian Empire.
Alexander conquered the Persian Empire.
Alexander the Great extended his empire by conquering the Persian Empire and turning it into an empire of his own.
Alexander helped the survival of his empire
Alexander the Great defeated the Persian empire
what part of Alexander's empire of Alexander's empire was located on the western end of the Black sea
The Macedonian Greek Empire of Alexander the Great conquered the Persian Empire and incorporated all of its lands.
Alexander invaded the Persian Empire and took it over, making it into an empire of his own.
Alexander's empire stretched from Greece in the north to Egypt in the south.
The Persian Empire, which Alexander took over.
Alexander as king.