What happened October 1934 AD in China

On October 14, 1934, the Red Army broke through the KMT line on the Jiangxi Soviet's south-west corner at Xinfeng with 85,000 soldiers and 15,000 party cadres and on 16 October, embarked on the "Long March". In order to make the escape, many of the wounded and the ill, as well as women and children, were left behind, defended by a group of guerrilla fighters whom the KMT massacred.