Sentence:  In Poland, for example, the unknown Bolesław Bierut, who appeared in 1944 in the <WSD>baggage</WSD> of the Red Army, and who played a prominent role as a ‘non-party figure' in the Lublin Committee, turned out to be a Soviet employee formerly working for the Comintern. 
Meaning of the word marked with <WSD> tags:  An army's portable equipment; its baggage train.