金戈铁马

very powerful army

surname Ma / abbr. for Malaysia 馬來西亞|马来西亚[Ma3 lai2 xi1 ya4]

horse / CL:匹[pi3] / horse or cavalry piece in Chinese chess / knight in Western chess

surname Jin / surname Kim (Korean) / Jurchen Jin dynasty (1115-1234)

gold / chemical element Au / generic term for lustrous and ductile metals / money / golden / highly respected / one of the eight categories of ancient musical instruments 八音[ba1 yin1]

surname Tie

iron (metal) / arms / weapons / hard / strong / violent / unshakeable / determined / close / tight (slang)

surname Ge

dagger-axe / abbr. for 戈瑞[ge1 rui4] / (Tw) abbr. for 戈雷[ge1 lei2]

armored horse / cavalry / metal chimes hanging from eaves / steel barricade / (Tw) bike