submarine - torpedo, bow - ?

ARROW
WordClue
BOWtorpedo - submarine, arrow - ?
BENDbow, curve
CURVEbow, arc
BULLETsubmarine - torpedo, pistol - ?
PISTOLtorpedo - submarine, bullet - ?
RIBBONbow
WEAPONbow or pistol
TORPEDObow - arrow, submarine - ?
WARSHIPcorvette or submarine
SUBMARINEarrow - bow, torpedo - ?
CONQUESTsubjugation
BULLETsubmarine - torpedo, pistol - ?