What was the Battle of Granicus and Gaugamela?

The Battle of Granicus, fought in 334 BCE, was the first major battle between Alexander the great and the Persian Empire, resulting in a decisive victory for Alexander and marking the beginning of his conquests in Asia. The Battle of Gaugamela, occurring in 331 BCE, was another significant confrontation where Alexander faced King Darius III of Persia, leading to a pivotal victory that effectively ended Persian resistance and solidified Alexander's control over the region. Both battles showcased Alexander's military tactics and strategy, contributing to his legacy as one of history's greatest military leaders.