The Collaborative International Dictionary of English v.0.48:
Soldiership \Sol"dier*ship\, n. Military qualities or state; martial skill; behavior becoming a soldier. [R.] --Shak. [1913 Webster]WordNet (r) 3.0 (2006):
soldiership n 1: skills that are required for the life of soldier [syn: soldiering, soldiership]