雇傭[koyou] employment (long term)
傭い兵[yatoihei] mercenary soldier
傭人[younin] employee
傭船[yousen] chartered ship
傭船契約[yousenkeiyaku] chartering ships

傭兵[youhei] mercenary (soldier)
傭聘[youhei] employing
傭う[yatou] to employ
日傭取[hiyoutori] day laborer
被傭者[hiyousha] employee

ゲリラ兵[gerirahei] guerrilla
１等兵[ittouhei] private (e-2)
衛兵[eihei] palace guard
閲兵[eppei] parade
援兵[enpei] reinforcements

下士官兵[kashikanhei] enlisted man
化学兵器[kagakuheiki] chemical weapons
化学兵器禁止条約[kagakuheikikinshijouyaku] chemical weapons ban treaty
寡兵[kahei] small army force
海兵[kaihei] sailor