Persian king Darius III failed to appreciate tactics & lost his empire to this great leader in 331 B.C.
The Macedonian leader immediately sized up the Persian's tactical... [DOC] [TLE] Darius III - Wikipedia [PAR] Darius III (c. 380  July 330 BC), originally named Artashata and called 
Codomannus by the Greeks, was the last king of the Achaemenid Empire of 
Persia from 336 BC to 330 BC.