maneuver vs stratagem

maneuver and stratagem both are nouns.

Word	Noun	Adjective	Verb	Adverb
maneuver	Yes	No	Yes	No
stratagem	Yes	No	No	No

As nouns, stratagem is a hyponym of maneuver; that is, stratagem is a word with a more specific, narrower meaning than maneuver:

Other hyponyms of maneuver include parking, device, gimmick, twist, feint, footwork, gambit, ploy, artifice, ruse, measure, step.

maneuver (noun)	stratagem (noun)
a move made to gain a tactical end	a maneuver in a game or conversation
an action aimed at evading an opponent	an elaborate or deceitful scheme contrived to deceive or evade
a military training exercise
a deliberate coordinated movement requiring dexterity and skill
a plan for attaining a particular goal

maneuver (verb)	stratagem (verb)
perform a movement in military or naval tactics in order to secure an advantage in attack or defense
direct the course; determine the direction of travelling
act in order to achieve a certain goal