soldiering vs attainment

soldiering and attainment both are nouns.

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

As nouns, attainment is a hypernym of soldiering; that is, attainment is a word with a broader meaning than soldiering:

Other hypernyms of soldiering include accomplishment, acquirement, acquisition, skill.

soldiering (noun)	attainment (noun)
the evasion of work or duty	the act of achieving an aim
skills that are required for the life of soldier	arrival at a new stage
	an ability that has been acquired by training