Answer:
ooo i know this its a clause :)
Explanation:
My personal opinion is that this part pf the poem is about war. It mentions soldiers, and deputies and also mentions “America singing” Sometimes when soldiers went to war they would sing the national anthem and other american tunes while marching to battle.
I would guess a semicolon. It is common for a semi-colon to be succeeded by a word like "however" or "therefore" and then a comma.