conflict, contention

STRUGGLE
WordClue
WARenmity, contention
FEUDcontention, fray
MYTHTrojan War
FIGHTconflict, combat
JIHADholy war undertaken by Muslims
PEACEWar and ... (Tolstoy)
SKULLhuman bone
BATTLEconflict, collision
COMBATconflict, struggle
EFFORTstruggle
ENMITYwar, contention
STRIFEcontention, conflict
WORLDSThe War of the ... (Wells)
QUARRELfeud, contention
ARMAMENTbody of forces equipped for war
CONFLICTstruggle, contention
VARIANCEdiscrepancy, conflict
ENCOUNTERconflict, fight
HOSTILITYwar, strife
CONTENTIONstrife, conflict
FIGHTconflict, combat
STRIFEconflict, discord