soldiership vs soldiering

soldiership and soldiering both are nouns.

Word	Noun	Adjective	Verb	Adverb
soldiership	Yes	No	No	No
soldiering	Yes	No	No	No

As nouns, soldiership and soldiering are synonyms defined as:

soldiership and soldiering: skills that are required for the life of soldier

soldiership (noun)	soldiering (noun)
skills that are required for the life of soldier	the evasion of work or duty
	skills that are required for the life of soldier