And so he puts one of his father's generals, now one of his generals, in charge of Greece, Antipater. Antipater declares him regent, and then leads troops off to what many people say is have the greatest, or many historians call the greatest adventure of all time, his attempt to conquer the Persian Empire and become the king of Asia. So the year is 334 BCE, and the first major battle that Alexander and his army encounters is at the Granicus River here in modern-day Turkey. Now, keep in mind that Alexander's force, depending on what time we're looking at, it numbers between 40 and 50,000 troops, a good number of them infantry, some cavalry, and most of the battles that we'll see him fight, especially the next two against the Persian forces, he's hugely outnumbered. But at Granicus, he actually has an advantage in terms of the number of infantry he has. He's slightly outnumbered in terms of cavalry, but he's able to defeat the Persian forces. Now, these Persian forces, they are significant.