Hyder's rule of Mysore was characterised by frequent warfare with his neighbours and rebellion within his territories. This was not unusual for the time, as much of the Indian subcontinent was then in turmoil, with the Hindu Maratha Confederacy struggling with the remnants of the Muslim Mughal Empire. He was a shrewd leader, and left his son Tipu Sultan a kingdom that was significantly larger than when he first took it over. He organised his military in part along European lines, and was a pioneer in the military use of rocket artillery. He had at least two wives, and fathered at least three children.