Aleading characterization of u. s. foreign policy in the early twentieth century was

I think the answer is "interventionist"

it was a act of seld fesnse more over it was a peace treaty between the fogein contunries.

the answer is c     : )

explanation:

i don't have an explanation because i don't know, but i think the answer is c because i googled it and google is right : ) just kidding google isn't allways right but the answer is still c. i hope this !