Sentence:  The Providence Daily Journal answered the Daily Post by stating that the raid of John Brown was characteristic of Democratic acts of <WSD>violence</WSD> and that `` He was acting in direct opposition to the Republican Party , who proclaim as one of their cardinal principles that they do not interfere with slavery in the states '' . 
Meaning of the word marked with <WSD> tags:  an act of aggression (as one against a person who resists)