soldiership vs acquisition

soldiership and acquisition both are nouns.

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

As nouns, acquisition is a hypernym of soldiership; that is, acquisition is a word with a broader meaning than soldiership:

Other hypernyms of soldiership include accomplishment, acquirement, attainment, skill.

soldiership (noun)	acquisition (noun)
skills that are required for the life of soldier	the act of contracting or assuming or acquiring possession of something
	an ability that has been acquired by training
	the cognitive process of acquiring skill or knowledge
	something acquired