defence force vs defense force

defence force and defense force both are nouns.

Word	Noun	Adjective	Verb	Adverb
defence force	Yes	No	No	No
defense force	Yes	No	No	No

As nouns, defence force and defense force are synonyms defined as:

defence force and defense force: an organization of defenders that provides resistance against attack

Other synonyms of defence force include defence, defense.

defence force (noun)	defense force (noun)
an organization of defenders that provides resistance against attack	an organization of defenders that provides resistance against attack