liáo shěn zhàn yì
Liaoshen Campaign (Sep-Nov 1948), the first of the three major campaigns by the People's Liberation Army near the end of the Chinese Civil War
辽
liáo
short name for Liaoning 遼寧|辽宁[Liao2 ning2] province
沈
shěn
short name for 瀋陽|沈阳[Shen3 yang2]
战
zhàn
to fight
役
yì
forced labor