役

forced labor / corvée / obligatory task / military service / to use as servant / to enserf / servant (old) / war / campaign / battle

step with the left foot (Kangxi radical 60) / see also 彳亍[chi4 chu4]

surname Shu

bamboo or wooden spear / Kangxi radical 79, occurring in 段[duan4], 毅[yi4], 殺|杀[sha1] etc

to enslave / slavery

military service

forced labor / corvée (labor required of a serf) / animal labor

servant

corvee / laborer

Battle of Mt Mengliang in Shandong of 1947 between the Nationalists and Communists

one person taking on two tasks simultaneously

Battle of Britain (Jul-Oct 1940)

Battle of Midway, June 1942

to use (an animal or servant) / working (animal) / (beast) of burden / causative form of verbs (esp. in grammar of Japanese, Korean etc)