After the Kalinga War, Ashoka decided never to wage any war because?

Ashoka was an Indian Emperor of the Maurya Dynasty , who ruled almost all of the Indian subcontinent from 268 to 232 BCE.The Kalinga war, the sight of such a carnage and massacre of human lives, and the sufferings of the wounde made a deep impression on Ashoka's mind. The unhappiness of the women and children made him very sad and unhappy .He vowed never to make a war again in his life. He decided to devote the rest of his life to the spread of Dharma. Thus the Kalinga war became a turning point of his life.