Battle of Shangcai was a series of clashes fought between the nationalists and the communists during Chinese Civil War in the post World War II era, and resulted in the communist victory. The battle is also called the Blocking Actions at Shangcai (上蔡阻击战) by the communists, who launched the battle to support their Eastern Hennan Campaign, with intention to prevent the nationalist force from reinforce their comrades-in-arms fighting the Eastern Hennan Campaign.