reconnaissance mission vs reconnaissance

reconnaissance mission and reconnaissance both are nouns.

Word	Noun	Adjective	Verb	Adverb
reconnaissance mission	Yes	No	No	No
reconnaissance	Yes	No	No	No

As nouns, reconnaissance mission and reconnaissance are synonyms defined as:

reconnaissance mission and reconnaissance: the act of reconnoitring (especially to gain information about an enemy or potential enemy)

reconnaissance mission (noun)	reconnaissance (noun)
the act of reconnoitring (especially to gain information about an enemy or potential enemy)	the act of reconnoitring (especially to gain information about an enemy or potential enemy)