Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. In 305 BC, Chandragupta Maurya led a series of campaigns to retake the satrapies left behind by Alexander the Great when he returned westwards. The Seleucid Empire under Seleucus Nicator fought to defend its colonies, but both sides made peace in 303 BC. The treaty ended the Seleucid Mauryan war and allowed Chandraguppta control of the regions it was warring for.Chandragupta Maurya established himself as ruler of Magadha around 321 BC. He made a huge army and decided to conquer the long-living Nanda Dynasty. He fought the empire for 11 years with successful guerrilla campaigns, and captured the Nanda capital, Pataliputra. This led to the fall of the empire and the eventual creation of the Maurya Empire with Chandragupta as its leader.