Petersburg Campaign vs campaign

Petersburg Campaign and campaign both are nouns.

Word	Noun	Adjective	Verb	Adverb
Petersburg Campaign	Yes	No	No	No
campaign	Yes	No	Yes	No

Petersburg Campaign (noun)	campaign (noun)
the final campaign of the American Civil War (1864-65); Union forces under Grant besieged and finally defeated Confederate forces under Lee	several related operations aimed at achieving a particular goal (usually within geographical and temporal constraints)
	an overland journey by hunters (especially in Africa)
	a series of actions advancing a principle or tending toward a particular end
	a race between candidates for elective office

Petersburg Campaign (verb)	campaign (verb)
	go on a campaign; go off to war
	run, stand, or compete for an office or a position
	exert oneself continuously, vigorously, or obtrusively to gain an end or engage in a crusade for a certain cause or person; be an advocate for