same difference...
Two pictures are worth ten thousand words. Nevertheless:
Merriam-Webster online
Main Entry: 1in·sur·gent
Pronunciation: -j&nt
Function: noun
Etymology: Latin insurgent-, insurgens, present participle of insurgere to rise up, from in- + surgere to rise -- more at SURGE
1 : a person who revolts against civil authority or an established government; especially : a rebel not recognized as a belligerent
2 : one who acts contrary to the policies and decisions of one's own political party
Main Entry: ter·ror·ism
Pronunciation: 'ter-&r-"i-z&m
Function: noun
: the systematic use of terror especially as a means of coercion